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nadezda [96]
3 years ago
10

-7+10x=54 9y-5x=81 Solve please

Mathematics
1 answer:
Mumz [18]3 years ago
8 0

Answer:

the first one is x=61/10

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What is the slope between the following problems?<br>(8,-4) and (2,-4)​
Varvara68 [4.7K]

Answer:

Slope = 0/-6

(Sorry for the bad handwriting)

7 0
2 years ago
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akash's salary in 2014 was 25% more than that of 2013,then his previous salary was what % of present salary
marishachu [46]

Answer:

80%

Step-by-step explanation:

Focus on the important parts of the problem:

The present salary is 25% more than the previous salary.

previous = % of present ?

<u>Use a mock/fake situation.</u> Let' say the previous salary is $100.

100 = % of present

Present salary is $100 increased by 25%.

$100 X 1.25 = $125

100 = % of 125

Solve this in decimal form (convert it to a percentage later).

Let x be the percentage in decimal form.

100 = 125x

100/125 = x    Isolate "x" by dividing by sides by 125

x = 0.80

Convert 0.80 to percentage by multiplying by 100.

0.80 X 100 = 80%

When comparing two things using percentage, 100% is the same. Less than 100% is less and more than 100% is more.

Since his previous salary was less than his present salary, this answer makes sense.

Therefore his previous salary was 80% of his present salary.

3 0
2 years ago
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The dot plots below show the ages of students belonging to two groups of music classes:
kolbaska11 [484]

Answer:

Step-by-step explanation:

8

4 0
1 year ago
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Find mzP<br><br> A 50<br> B. 60<br> C. 70<br> D. 120
marishachu [46]

Answer:

d.120

Step-by-step explanation:

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m=120

z=120

8 0
3 years ago
#7: Five containers, each weighing the same amount, were placed on a 30-pound
Ede4ka [16]

Answer:

Option (B)

Step-by-step explanation:

Let the weight of one container = x pounds

Therefore, weight of 5 containers = 5x pounds

Weight of the platform = 30 pounds

Total weight of the platform and containers = (5x + 30) pounds

If the maximum weight that can be lifted by the cable = 780 pounds

Inequality representing this situation will be,

(5x + 30) < 780

5x < 780 - 30

5x < 750

x < 150

Therefore, Option (B) is the answer.

6 0
3 years ago
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