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Aleks04 [339]
3 years ago
9

Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. −5x − 25 = 78

Mathematics
2 answers:
EastWind [94]3 years ago
7 0

Answer:

A

Step-by-step explanation:

she should have added 25 to both

AnnyKZ [126]3 years ago
3 0

Answer:

A

Step-by-step explanation:

She should have added 25 to each side in order to cancel it out.

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2500 * 0.9 = 2250
2250 * 0.9 = 2025 current stock
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2 years ago
Mark has 153 hot dogs and 171 hamburgers. He wants to put the same number of hot dogs and hamburgers on each tray. What is the g
navik [9.2K]

Answer: 153 trays

Step-by-step explanation:

hotdogs =153

Hamburger = 171

Mike is to put the same number of hamburger and hotdogs in each plate.

we assume that a whole number of each food is placed in each tray.

The maximum amount of trays will be determined by the minimum food which is hotdog, so, the hotdog is the constraint.

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5 0
3 years ago
Read 2 more answers
Will give Brainliest! if right! 
riadik2000 [5.3K]
A is the right answer my bad :(
6 0
3 years ago
This month the Middle School Media newspaper has 25 pages. Twenty-five schools order the paper for each of their students. Each
EastWind [94]

Answer:

25 to the power of 3.

Step-by-step explanation:

we got 25 schools ordering newspapers for 25 classes of 25 kids. that's 25x25x25. it wants the number of pages total, and since there's 25 pages in each newspaper we add another 25. so it's 25x25x25x25, also known as 25 to the power of 3.

5 0
2 years ago
Mr. Hammond is the volunteer coordinator for a company that puts on running races. Last year, the company organized 7 short race
worty [1.4K]

Answer:

28 short race volunteers

76 long race volunteers

Step-by-step explanation:

Let :

Short races = a

Long races = b

LAST YEAR:

7a + 8b = 804 - - - - (1)

THIS YEAR:

11a + 5b = 688 - - - (2)

Multiply (1) by 5 and (2) by 8

35a + 40b = 4020

88a + 40b = 5504

Subtract

-53a = - 1484

a = 1484 / 53

a = 28

Put a = 28 in equation (1)

7(28) + 8b = 804

196 + 8b = 804

8b = 804 - 196

8b = 608

b = 76

28 short race volunteers

76 long race volunteers

4 0
2 years ago
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