2 years ago

Easy math questions pls help

Mathematics

1 answer:

Anni [7]2 years ago

6 0

Answer:

Step-by-step ex planation:

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Graphing this equation -x+4y=8

Keith_Richards [23]

The linear form of that equation is y=1/4x+2. Your y-intercept should be 2 and the slope is 1/4.

8 0

3 years ago

Brielle and Joshua are running a half marathon race, which is 13.1 miles long. It

Hitman42 [59]

Answer:Brielle will run the half marathon race faster.Brielle will take 1 hour 44 minutes and 48 seconds, Joshua will take 2 hours 37 minutes and 12 seconds

Step-by-step explanation:

10 / 1.25 = 8

8 minutes a mile

18 / 1.5 = 12

12 minutes a mile

Brielle will run the half marathon race faster.

8 x 13.1 =104.8

12 x 13.1=157.2

104.8 - 60=

44.8

60 seconds x .8= 48

Brielle will take 1 hour 44 minutes and 48 seconds

157.2 - 120 = 37.2

60 seconds x .2 = 12

Joshua will take 2 hours 37 minutes and 12 seconds

8 0

4 years ago

Find an expression which represents the difference when (6x-3y) is subtracted from (9x+2y) in simplest terms.

Alex73 [517]

Answer:

$3x+5y$

Step-by-step explanation:

Subtract (6x-3y) from (9x+2y):

$(9x+2y)-(6x-3y)$

This can also be seen as:

$(9x+2y)-1(6x-3y)$

Distribute the -1 to (6x-3y):

$(9x+2y)-1(6x)-1(-3y)\\\\(9x+2y)-6x+3y$

Simplify the parentheses:

$9x+2y-6x+3y$

Group like terms:

$(9x-6x)+(2y+3y)$

Combine:

$3x+5y$

This expression can't be further simplified. Therefore, 3x+5y is the answer.

:Done

6 0

3 years ago

Been struggling with these problems can anyone help me<br> 19,21,23,25,27,28,30

FrozenT [24]

21 = 4.8
8 x 2.1 = 16.8 - 12 = 4.8

3 0

3 years ago

Read 2 more answers

I need helppppp please

mr_godi [17]

Answer:

Option 2.

Step-by-step explanation:

The antifreeze claims to protect between -30 C and 130 C. The inequality should be this: $-30$

You can replace C with the Fahrenheit formula: C= $\frac{5}{9} (F-32)$

So, the inequality becomes $-30$

7 0

3 years ago