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Mama L [17]
2 years ago
7

Help plz I need this grade

Mathematics
1 answer:
Sindrei [870]2 years ago
7 0

Answer: (1,3)

Step-by-step explanation:

5y=10+5x

y=2+x

      plug in (2+x) for y

21x+7(2+x)=42

21x+7x+14=42

           -14  -14

28x=28

x=1

       plug in 1 for x

y=2+1

y=3

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What is 22/28 in simplest form
sveticcg [70]
The answer would be 11/14
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3 years ago
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Rachel needs to save $1.015 to buy a new scooter. If she saves $35 each
fiasKO [112]

Answer:

Step-by-step explanation:

From the problem statement, we can setup the following equation:

35M = 1015

where M is the number of months that Rachel has saved up money.

Dividing both sides by 35, we get the answer:

M = 29

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3 years ago
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We can use the formula, density = mass over volume, to find the density of a substance. A square metal plate has a density of 10
mash [69]

Answer:

2.15cm^3

Step-by-step explanation:

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3 0
3 years ago
I need help I try Photomath I didn’t help me .
kaheart [24]

Answer:

8. 8.80

9. 90

Step-by-step explanation:

Question 8: Use the Pythagorean formula

DE² = DF²+EF²

EF² = DE² - DF²

= 16.2² - 13.6²

= 77.48

EF = √77.48 = 8.80  (Answer)

Question 9: Use the Cosine Rule

GI² = GH² +HI² - 2·GH·HI·Cos ∠GHI

= 60² + 42² - 2·60·42·Cos 123

= 3600 +1764 - (-2744.98)

= 8108.98

GI = √8108.98 = 90

4 0
3 years ago
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Compare 9.36 and 9.359
Sati [7]

Try this option (this is not the only way!):

1. the rule: if 'number_1' - 'number_2' > 0, then number_1>number_2. If 'number_1'-'number_2'<0, then number_2>number_1.

2. according to the rule above: 9.36-9.359=0.001. 0.001>0, it means, 9.36>9.359.

6 0
3 years ago
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