Answer:
Isaac earned $117.99 this week
Step-by-step explanation:
Percentages
The N% of a quantity M is calculated as follows:
N * M / 100
Isaac earns a 9% commission for his sales.
This week he sold $1,311, thus his commission is:
9 * 1,311 / 100 = 117.99
Isaac earned $117.99 this week
Solve the following system.
y + 4z = -14
x + 3z = -8
2x-3y=8
Please actually help and don’t just answer with “idk” for points
Answer:
[tex]y=-2,\:\\x=1,\:\\z=-3[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}y+4z=-14\\ x+3z=-8\\ 2x-3y=8\end{bmatrix}\\\\Isolate\:y\:for\:y+4z =-14\: : \:y=-14-4z\\\\\mathrm{Subsititute\:}y=-14-4z\\\\\begin{bmatrix}x+3z=-8\\ 2x-3\left(-14-4z\right)=8\end{bmatrix}\\\\Isolate\:x\:for\:x+3z =-8\: :\:x =-8-3z\\\mathrm{Subsititute\:}x=-8-3z\\\\\begin{bmatrix}2\left(-8-3z\right)-3\left(-14-4z\right)=8\end{bmatrix}\\\\Simplify\\\\\begin{bmatrix}6z+26=8\end{bmatrix}\\\\Isolate\:z\:for 6z+26=8 \: ;\:z =-3\\\\\mathrm{For\:}x=-8-3z\\\\[/tex]
[tex]\mathrm{Subsititute\:}z=-3\\\\x=-8-3\left(-3\right)\\\\-8-3\left(-3\right)=1\\\\x=1\\\\\mathrm{For\:}y=-14-4z\\\\\mathrm{Subsititute\:}x=1,\:z=-3\\\\y=-14-4\left(-3\right)\\\\-14-4\left(-3\right)=-2\\\\y=-2\\\\\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}\\\\y=-2,\:x=1,\:z=-3[/tex]
A car show is making a model of 1980 Ford truck. The model is 10 inches long. If the model truck has a scale of 3 in: 2ft, how tall is the actual truck?
Answer:
Step-by-step explanation:
3 inches is 2 feet
10 inches is 6.66 feet (no this isn't a joke)
An equation is shown below:
4(x − 3) − 5(x + 1) = 3
Which statement shows a correct next step in solving the equation?
The equation can become 4x − 3 − 5x + 1 = 3 by applying the associative property of multiplication.
The equation can become 4x − 3 − 5x + 1 = 3 by applying the distributive property.
The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
Answer:
The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
Step-by-step explanation:
By applying the distributive law to this equation, we can produce the equation :
4x − 12 − 5x − 5 = 3;
The distributive property is a mathematical function in which each element in the parentheses is multiplied by the one outside of it;
4(x − 3) − 5(x + 1) = 3
In the equation;
4 distribute over the first parentheses and -5 over the second one;
So we expand;
4x - 13 - 5x -5 = 3
In distributive property, expansion simply takes place.
Solve 5x - 10 <_ 20 pls help
Answer:
(-∞, 6]
Step-by-step explanation:
Step 1: Write inequality
5x - 10 ≤ 20
Step 2: Solve for x
Add 10 to both sides: 5x ≤ 30Divide both sides by 5: x ≤ 6Here we see that any value less than or equal to 6 would work.
∴ the 3rd option is our answer.
What is the binomial expansion of (m + 2)4?
The expansion will have
terms with coefficients from row
of Pascal’s triangle.
Answer:
4m+8
Step-by-step explanation:
4(m+2) use distributive property
Answer:
The expansion will have 5 terms with coefficients from row 4 of Pascal’s triangle.
Step-by-step explanation:
1. Assume that the number of hours Jose spent practicing soccer is
represented by x. Miguel practiced 5 hours more than 2 times the
number of hours that Jose practiced. How long did Miguel
practice?
a. 2x + 5
b. 2x − 5
c. 2x + 8
d. 5x + 5
2. Zack gets paid five dollars less than three times what Ty'Shaun gets
paid. If the number of dollars that Ty'Shaun gets paid is represented
by x, what does Zack get paid?
a. 5 − 3x
b. 5x − 3
c. 3x − 5
d. 3 − 5x
3. If the expression 9y − 5 represents a certain number, which of the
following could NOT be the translation?
a. five less than nine times y
b. five less than the sum of 9 and y
c. the difference between 9y and 5
d. the product of nine and y, decreased by 5
4. Brenda starts work at 4:00 and Dee starts at 5:00. They both finish at the
same time. If Angela works x hours, how many hours does Dee work?
a. x + 1
b. x − 1
c. x
d. 2x
5. Isabel bought six books that cost d dollars each. What is the total cost
of the books?
a. d + 6
b. d + d
c. 6d
Sarah has to pay a one-time $300 deposit for her apartment. Each month she pays $700 for rent. How much would Sarah pay for “n” months?
Answer:
700n + 300
Step-by-step explanation:
We know that no matter what happens, Sarah has to pay a One-Time $300 for her deposit.
Now, we know that for every month she stays in the apartment, it will cost her $700.
So, we can come up with a formula to find out how much she would pay:
700n + 300
Hope this helps!
Write 3 Equivalent ratios for the following ratio: 3:4
Answer:
3:4=6:8=12:16=24:32
Step-by-step explanation:
To find an equivalent ratio, you just need to multiply or divide both quantities by the same number.
What is the slope of the line between -8,5 and 4, -3
Answer:
In the pic
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)
A formula to find the angle measures of an isosceles triangle is shown. 180=2x+y Which equation can be used to find x?
A. [tex]x=\frac{180-y}{2}[/tex]
B. [tex]x=\frac{180+y}{2}[/tex]
C. [tex]x=90-y[/tex]
D. [tex]x=90+y[/tex]
The next model of a sport car will cost 3.6% more than the current model. The current model cost $42,000. How much will the price in dollars? What will be the price of the next model
Answer:
$43,512
Step-by-step explanation:
3.6% = 0.036
0.036 * 42,000 = 1,512
42,000 + 1,512 = 43,512
Slope of the points (0,-4) (2,-1)
help me im stoopid lol
Answer: 6
Step-by-step explanation:
Plug in x for 1
Y=-4(1)+10
Y=-4+10
Y=6
Question in the picture
Answer:
The Internet started in the 1960s as a way for government researchers to share information. ... This eventually led to the formation of the ARPANET (Advanced Research Projects Agency Network), the network that ultimately evolved into what we now know as the Internet.
The temp at a mountain base camp was -5 degrees Celsius on Wednesday. Thursday morning the temp was 2 degrees lower than it was on Wednesday. by Thursday evening the temp was 1 degree Celsius lower than it was that morning. What was the temp at Thursday morning.
A.-9
B.-8
C.-7
D.-6
Answer:
-8
Step-by-step explanation:
is −8>6 true or false
Ashley makes y dollars per hour. Richard makes three times as much. How much does Richard make per hour?
Richard makes 3y per hour.
Since there are no numbers indicating the wage, this is the only logical answer.
Japanese 22 pirate for every two pirate ships he manages
Answer:
He should sell them he would be rich.
Step-by-step explanation:
Which of these numbers rounds to 0.3 when rounded to 1 decimal place?
Answer:
Anything from 0.31 - 0.34 rounds to 0.3
Triangle ABC is transformed to triangle A′B′C′, as shown below:
A coordinate grid is shown from negative 4 to 0 to 4 on both x- and y-axes. A triangle ABC has A at ordered pair negative 1, 3, B at ordered pair 0, 1, C at ordered pair negative 3, 0. A triangle A prime B prime C prime has A prime at ordered pair negative 1, negative 3, B prime at ordered pair 0, negative 1, C prime at ordered pair negative 3, 0.
Which equation shows the correct relationship between the measures of the angles of the two triangles?
The measure of angle CAB = The measure of angle C prime B prime A prime
The measure of angle BCA = The measure of angle A prime B prime C
The measure of angle CAB = The measure of angle C prime A prime B prime
The measure of angle BCA = The measure of angle C prime A prime B prime low
Answer:
The measure of angle BCA = The measure of angle A prime B prime C
A baker is making rolls. He has 20 pounds of dough. Each roll is made from 1/8
pounds of dough. How many rolls can he make?
On Monday, your bank account balance was −$12.92. Because you didn't realize this, you wrote a check for $30.41 for groceries. What is the new balance in your account?
HELP!
Keiko has a 20% copays for hospital visits after paying her deductible. Assuming she already paid her deductible earlier in the year, how much will she pay (copay) for a hospital bill of $3,291?
A. $328.90
B. $658.20
C. $2,632.80
D. $1,645.50
Answer:
$658.20
Step-by-step explanation:
Money paid in deductible = $3,291
percentage of money to be co-paid = 20% of Money paid in deductible
Thus, she has to 20 percent more which will be 20/100 th part of money paid in deductible.
Solving it we have
Money to be co-paid = 20% of $3,291 = 20/100 * $3,291 = $658.20
Thus, Keiko will pay (copay) $658.20 for the hospital bill
help me please. Alejandro babysits in the evenings. He makes a graph to show the money
earns. How much money does Alejandro earn for each hour of babysitting?
How do you know?
Find an equivalent expression to 7y + 28x
HELP!!
Are triangles RST and RDC congruent?
A. Yes by AA
B. Yes by SSS
C. Yes by SAS
D. They are not similar
Answer: D
Step-by-step explanation: I did that exact same thing!!
can someone help me? i'm confunsed and I don't know anything
Answer:
See Below
Step-by-step explanation:
ABCD primes all correspond to x and y values on the graph.
A=
B=
C=
D=
1) y- intercept
2) time of max height
3) time when balloon hits ground
4) x-intercept
5) max height
6) Initial height
So lets look at (0,A)
This would count as the y - intercept as well as the height they started throwing the balloons.
Soo....
A = y-intercept; Initial height
Now, (B,C)
This is the highest point on the graph, therefore it would be the max time and max height.
If we look at this as a person behind the line throwing the ballon, the y would be the height and the x would be the time
B = Time of max height
C=Max height
(D,0)
From the visual above, this point would be where the balloon hits the ground
From the visual in our head, x is time and y is height
Since d is the x, it is the time when the balloon hits the ground. And since
y =0, D is also the x intercept
D = x intercept, Time when balloon hits ground
Therefore,
A = y-intercept; Initial height
B = Time of max height
C=Max height
D = x intercept, Time when balloon hits ground
Hope this helps! =D
Suppose that 24 inches of wire costs 96 cents.
At the same rate, how much (in cents) will 47 inches of wire cost?
Answer:
Step-by-step explanation:
24inches = 96 cents
To find the cost of 1 inch, divide 96 cents by 24.
1 inch = 96/24 = 4 cents
Then to find the cost of 47 inches, multiply by 4.
47 inches = 47 x 4 = 188 cents.
Is 1,815 a rational number?
Answer:
The square root of 1815 is a rational number if 1815 is a perfect square. It is an irrational number if it is not a perfect square. Since 1815 is not a perfect square, it is an irrational number.
Step-by-step explanation:
I comfirmed this, it’s most likely right! (;
2. Solve the system by substitution. (1 point)
2x – y + z = -4
z = 5
-2x + 3y - 2 = -10
O(-8,7,5)
O(-8. -7,5)
O(8, -7,5)
O(-8, -7,-5)
Answer:
Answer for this one is second one (-8,-7,5)
Step-by-step explanation:
Hope it will help you :)