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Crank
2 years ago
12

Hello help me with this one please

Mathematics
2 answers:
Temka [501]2 years ago
8 0

Answer:

58 pages left and time is 4

Step-by-step explanation:

let x be the time taken by them

they have same no of pages left means

278-55x = 238-45x

-10x = -40

x=4

55x = 55*4 = 220

278-220 = 58

45x = 45*4=180

238-180 = 58

Yuliya22 [10]2 years ago
7 0

Answer: The answer is: After a 100 hours, both boys had 40 pages left to read.

Step-by-step explanation: Yw and pls mark me as brainiest

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6 0
3 years ago
If a = 5, what is the value of a-3?​
Gwar [14]

Answer:

2

Step-by-step explanation:

5-3=2

3 0
3 years ago
Read 2 more answers
Thank you will mark brainliest
frozen [14]

Answer:

Option D

Step-by-step explanation:

We have to find the value of the composite function (h o k)(2).

Since, (h o k)(x) = h[k(x)]

(h o k)(2) = h[k(2)]

From the picture attached,

At x = 2

k(2) = (-2)

Therefore, h[k(2)] = h(-2)

Since, h(x) = \frac{3}{x+1}

Therefore, h(-2) = \frac{3}{-2+1}

                          = -3

(h o k)(2) = -3 is the answer.

Option (D) is the correct option.

8 0
3 years ago
Silvia buys 12 steaks that are each 34 of a pound. She spends a total of $90 on steaks. Complete each sentence. Silvia buys a to
scZoUnD [109]
I think in the first sentence, that should have been 3/4 instead of 34. Total amount of steak bought (lb)
                                        total amount = (3/4 lb/steak)(12 steak) = 9 lb
To find the total amount that Silvia spends for each pound of steak, we divide $90 by 9 and that will give us an answer of $10. 
5 0
3 years ago
6x + 3y = 33 4x + y = 15 A. x = 2, y = 7 B. x = -13, y = 7 C. x = - 2 3 , y = 12 2 3 D. x = 5, y = 1
klio [65]

6x+3y=33..........(1)

4x+y=15

y=15-4x.........(2)

substitute value of y from (2) in (1)

6x+3(15-4x)=33

distribute 3 over the bracket

6x+45-12x =33

-6x=33-45

-6x=-12

x=2

plugging this value of x in equation 2 we get

15-4x=y

15-4(2)=y

y=15-8

y=7

Answer is x=2 and y=7

3 0
3 years ago
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