Answer:
I believe A...
Step-by-step explanation:
Sorry if i'm wrong):
Option (A) The number is at least negative four-fifths. is correct because x is at least -4/5.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
It is given that:
If three times a number is at least four or more than eight times the number,
Let x be the number
Mathematically, it can be written as:
3x is at least 4 + 8x
3x - 8x is at least 4
- 5x is at least 4
x is at least -4/5
Thus, option (A) The number is at least negative four-fifths. is correct because x is at least -4/5.
Learn more about inequality here:
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Please Help!!!!!!!!
19. The velocity of an object fired directly upward is given by V = 35 – 9.8t, where t is time in seconds. Which inequality describes the velocity when t is between 0.5 and 1.5 seconds? (HINT: Remember that when you multiply an inequality by a negative number, you must switch the direction of the inequality.)
A. 20.3 > 35 - 9.8t > 30.1
B. 4.9 > t > 14.7
C. 0.5 35 - 9.8t > 4.9
D. V < 30.1
E. 20.3 < 35 - 9.8t < 30.1
F. 14.7 > 35 - 9.8t > 4.9
Answer:
20.3 < 35 - 9.8t < 30.1
Step-by-step explanation:
Given the Velocity model:
V = 35 – 9.8t ; t = time in seconds
V when t is between 0.5 and 1.5
V when t = 0.5
V = 35 - 9.8(0.5)
V = 35 - 4.9 = 30.1
Vt=0.5 = 30.1
V when t = 1.5 ;
V = 35 - 9.8(1.5)
V = 35 - 14.7 = 20.3
Vt= 1.5 = 20.3
Hence V, between, t = 0.5 and t = 1.5
Vt=1.5 < V < Vt=1.5
20.3 < V < 30.1
V = 35 - 9.8t
20.3 < 35 - 9.8t < 30.1
A backpack will hold 2,808 grams. If a T-shirt weighs 156,000 milligrams, how many T-shirts will the backpack hold?
Answer:
18 T-shirts
Step-by-step explanation:
1gram = 1000milligrams
1gram × 156000milligrams ÷ 1000milligrams
The milligrams unit cancel out each other thus grams remains as the main unit.
=156grams
1 T-shirt = 156grams
1 T-shirt × 2808grams ÷156grams
The grams unit cancel out each other thus T-shirt remains as the main unit.
=18 T-shirts
Answer:
18
Step-by-step explanation:
Jack went to the cash point. He drew out the same amount of money as he had in his pocket. He then spent £40 on CDs.
Jack went back to the cash point.
He drew out the same amount of money as he had in his pocket.
He then spent a further £40 on CDs. Jack did this a third time.
He then had no money left. How much money did he have with him to start?
Answer:
£30
Step-by-step explanation:
Jack had 30 pounds, he withdrew 30 more and had 60,he spent 40 and was left with 20.Then he withdrew 30 more and had 50,he spent 40 and was left with 10.Then he withdrew 30 more and had 40,he spent 40 and was left with 0 meaning he had no money
While mining, Jason found a large metal bar that weighed 50 ounces. Jason was also able to determine that the bar contained 60% nickel. How many ounces of nickel are in the metal bar?
Answer:
The answer is 30
Step-by-step explanation:
The percentage is calculated by dividing the required value by the total value and multiplying by 100.
If 60% of nickel is present in the metal bar that weighs 50 ounces.
The amount of ounces of nickel in the metal bar is 30 ounces.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% of 100 = 50/100 x 100 = 50
20% of 40 = 20/100 x 40 = 8
We have,
Weight of the metal bar = 50 ounces.
The percentage of nickel in the metal bar = 60%
The amount of nickel in the metal bar:
= 60% of 50 ounces
= 60/100 x 50 ounces
= 30 ounces
Thus,
If 60% of nickel is present in the metal bar that weighs 50 ounces.
The amount of ounces of nickel in the metal bar is 30 ounces.
Learn more about percentages here:
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plz plz help i promise i will mark brainliest
Answer:
unfortunately I am not available for a few of these weekends and would be grateful
Write an algebraic expression for the difference of 5 from b .
Answer:
b-5
Step-by-step explanation:
peter says, "If you subtract 11 from my number and multiply the difference by -2, the result is -26." What is Peter's number?
Answer:
24
Step-by-step explanation:
Reverse
-26/-2= 13
13+11=24
Check
24-11=13
13×-2= -26
I beleive the answer is 7.5 because -26 plus 11 = -15 then -15 divided by -2 = 7.5
this is probably wrong I didnt do it on paper
1. At Doug's discount all CDs sell for the same price. There is also one price for
DVDs. Dave buys three CDs and two DVDs for $67. Joyce buys two CDs and four
DVDs for $90.
(4 pts.)
What is the price of one CD? One DVD?
Answer:
I know Dave's one is 13.04$ Just to get you started.
Step-by-step explanation:
If you divide Dave's one, which is 67 by 5, you get 13.05.
Do the same with Joyce's.
The Rams football lost 18 yards on 3 consecutive plays.The lost the same number of yards on each play.How many yards did they lose on the second play
Answer: The answer is 6!
Step-by-step explanation:
Sorry. If I’m late! & Explanation? I just took the test Nd scored an 100%
Answer:
The answer is -6!
Step-by-step explanation:
I promise you, I just took the USATestprep test and this is the answer. Good luck with the rest of the test!
Titus took 30 minutes to walk 2 miles at a constant rate. Let d represent the distance Titus walks in miles after t minutes. What are two different constants of proportionality for the relationship between distance, in miles, and time, in minutes?
Answer:
15 and 1/15
Step-by-step explanation:
Given
Time (t) = 30 minutes
distance (d) = 2 miles
To determine the first constant of proportionality
Let time be directly proportional to distance.
t = kd
Where k is the constant of proportionality
Make k the subject
k = t/d
Substitute values for t and d
k = 30/2
k = 15
To determine the second,
Let distance be directly proportional to time.
d = kt
Make k the subject
k = d/t
Substitute values for d and t
k = 2/30
k = 1/15
Hence, the constant of proportionality are
15 and 1/15
help please it important
x: cupcakes
y: cakes
[tex]2.50x + 15y \geqslant 510 [/tex]
cakes is 15
2.50(114)+15y....≥510
(285+15y≥510)-285
(15y≥225)/15
y≥15
9514 1404 393
Answer:
4. 2.5x +15y > 510
5. y > 10
Step-by-step explanation:
4. The revenue from each of x cupcakes is 2.50, so the total revenue from cupcake sales is 2.50x.
The revenue from each of y cakes is 15.00, so the total revenue from cake sales is 15.00y.
The total revenue from sales of cupcakes and cakes is more than 510, so we can write the inequality ...
2.5x +15y > 510 . . . . possible combinations of cakes and cupcakes
__
5. For x=144 the constraint on y is ...
2.5(144) +15y > 510
360 +15y > 510
15y > 150
y > 10 . . . . possible number of cakes sold
f(X)=3x+7, find f(10)
Answer:
37
Step-by-step explanation:
Sorry if this is wong I haven't done these in awhile, but this is how I got it.
f(X)=3x+7
f(10)=3(10) +7
f(10)=30 +7
f(10)=37
Answer:
f(10)=37
Step-by-step explanation:
f(x)=3x+7
(for f(10) we sub 10 for x)
f(10)=3×10+7
=30+7
=37
Find the midpoint of the segment with the following endpoints. (5,4) and (1,7)
Answer: wait one sec
Step-by-step explanation:
Answer:
(3,5.5)
Step-by-step explanation:
(x₁+x₂) (y₁+y₂)
-------- --------
2 2
5+1 7+4
6 11
------ ------
2 2
(3, 5.5)
4. Escribe
5. Escribe la ecuación 3x + 4y - 20 = 0 en su forma simétrica.
62
Answer:
which principle prevents a brach from abusing its power
Step-by-step explanation:
Taylor paid $8.10 for 3.6 pounds of apples what was the price per pound of apples
Answer:
2.25 per pound
Step-by-step explanation:
i took 8.10 divided by 3.6 to get the price per pound
(brainllist plz)) (if helped)
Read the sentence below and answer the following question: Roy was very careful to cleave the apple into even portions. What does the word cleave mean in the context of this sentence? O Hack: to sever with blows O Chop: to deliver a cutting strike O Divide: to separate into parts O Part: to separate
Which fraction is equivalent to this decimal?
0.16¯
Answer: 4/25 ILY <3
Step-by-step explanation:
Answer:
1/6?
Step-by-step explanation:
(1.2/0.375-0.2)/(6.16/15.4+0.8)=(0.016/0.12+0.7)/x
9514 1404 393
Answer:
x = 1/3
Step-by-step explanation:
The solution to ...
a = b/x
is ...
x = b/a
It is convenient to let a calculator do the tedious arithmetic.
x = (0.016/0.12+0.7)/((1.2/0.375-0.2)/(6.16/15.4+0.8))
x = 1/3
An 80 metre long train crosses a 120 metre long platform in 20 seconds, what is the speed of the train per hour?
ans:
Total distance= length of train + length of platform
I.e 80+120= 200 m but need in kmph so 0.2 km
Time = 20 second but need in hours so 20/(3600)= 1/(180)
Speed = distance / time = 0.2*180= 36 kmph
Please help !! I am having trouble, I keep getting this question wrong.
Answer:
sure
Step-by-step explanation:
I will do that okay
For what value of k will the vector (1, -2, k) in be a linear combination of the vectors (3, 0, -2) and (2, -1, -5) ?
PLEASE HELP ME FIND THE SIDE OF THE SQUARE
Answer: 6 inches
Step-by-step explanation:
Side length = 6 in.
Diagonal = 6[tex]\sqrt{2}[/tex] = 8.49 rounded
Perimeter = 24 in
Area = 36 in²
help me asap 40 points in the next 10 minutes a store is going to make a trail mixture of peanuts and chocolate candies. They want the mixture to sell for 3.20 per pound.
peanuts sell for 4.50 per pound and they are going to use 20 pounds of peanuts. If chocolate candies sell for 2.25 per pound how much pounds of the chocolate candies should they use round to the nearest pound.
Answer:
30 pounds
Step-by-step explanation:
took test
PLEASE help it's due like right now
Answer:
B (6,7)
Step-by-step explanation:
point x has moved 2 places left, so you move z to places left
It’s D right? Let me know if I’m wrong.
Answer:
yes D is right... brainliest plz
What is the product of the 3rd square number and the 3rd square number
Answer:
3² x 3² = 9 x 9 = 81
Step-by-step explanation:
hope it helps you
Look at the situation below. Which equation determines how far they travel in feet (F) per second (S)? Mary walks her dog every morning before school. They travel 4 feet per second.
Answer:
Feet / per second
4 feet/per second
Step-by-step explanation:
whats 8 more than the product of X and 8
Answer:
8X +8
Step-by-step explanation:
If f(x) = -x + 4 and g(x) = x^2 - 5, then g(f(-1)) = ?
Answer:
g(f(-1)) = 20
Step-by-step explanation:
first we need to compute f(-1)
f(-1) = -( -1 ) + 4 = 1 + 4 = 5
then we take g(5):
g(5) = ( 5 )^2 - 5 = 25 - 5 = 20
show the steps you take and the final answer you get when you evaluate the expression.
Answer:
28
Step-by-step explanation:
(4+5x)-x^2
(4+5(3))-3^2
(4+15)+9
19+9
28