All categories

4 years ago

I need help with 38,39 and 40 please!

Mathematics

2 answers:

Nezavi [6.7K]4 years ago

5 0

Answer:

38 = B

39 = C

40 = C

Step-by-step explanation:

38 = although this may be a frations look at it in a different way.

A problem I had was 90 over 5 which I had to divide by. Therefore your answer is B.

39 = Now with a lot of varibles you will encounter later on, when a letter is next to a number like this: 3t, then you always miltiply.

40 = For this to be C you basically have to multiply the number of hours by the number of miles. Which comes to the concept talked about in the last explanation.

Hope this helps, please give brainliest if it does.

kodGreya [7K]4 years ago

4 0

Answer:

It's 37. B 38. B 39. C 40. A

Step-by-step explanation:

You might be interested in

Which of the following functions has the largest value when x = 3? c(x) = 3x2 + 5x + 22 j(x) = 12x a(x) = 9x

Olin [163]

To determine the function which has the largest value at x=3,

We will calculate the value of each function by substituting the value of x=3 in each of the given function.

Let us consider the first function,

$c(x)=3x^{2}+5x+22$

$c(3)=3\times 3^{2}+5 \times 3+22$

$c(3)=27+15+22$

$c(3)=64$

Let us consider the second function,

$j(x)=12x$

$j(x)=12 \times 3 =36$

Let us consider the third function,

$a(x)=9x$

$a(x)=9 \times 3=27$

Therefore, the function c(x) has the largest value at x=3.

3 0

3 years ago

Mr's Rodman's class sold candy bras for $1.25 each and Mr's Powell's class sold water bottles for $0.75 each to raise for the ma

Anvisha [2.4K]

The equation system is

1.25x+0.75 (92-x)=87.5

Solve for x

1.25x+69-0.75x=87.5

0.5x+69=87.5

0.5x=87.5-69

0.5x=18.5

X=18.5÷0.5

X=37 units of candy bras

(92-37)=55 units of water bottles

Mr's Powell's class sold more items

Let's look which class earned more

Mr's Powell's class earned

55×0.75=41.25

Mr's Rodman's class earned

37×1.25=46.25

So from above

Mr's Rodman's class earned more

Hope it helps!

5 0

3 years ago

Two mechanics worked on a car. The first charged $115 per hour and the second charged $80 per hour. The mechanics worked for a c

Nataly_w [17]

Total cost is 3,900. 115 x 20 = 2,300.
80 x 20 = 1,600. 2,300 + 1,600 = 3,900.

5 0

4 years ago

Read 2 more answers

Solve: 3x-8 = 6(1 – 2x) +16

leva [86]

Answer:

x=2

Step-by-step explanation:

Attached Picture...

7 0

2 years ago

Max sprints forward 10 feet and then stops and sprints

gogolik [260]

Max sprints forward 10 feet (+10), and then stop and sprints back 15 feet (-15)

10 - 15 = -5

max is five feet below where he started

3 0

4 years ago