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3 years ago

Plz help, it a question on a test due soon.

Mathematics

2 answers:

Fed [463]3 years ago

6 0

The answer is y=1*-1

allochka39001 [22]3 years ago

3 0

Answer:

y=3x+1

Step-by-step explanation:

The slope-intercept form is

, where

is the slope and

is the y-intercept.

Find the values of

and

using the form

The slope of the line is the value of

, and the y-intercept is the value of

Slope:

y-intercept:

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Answer:

19 1/2

Step-by-step explanation:

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Mama L [17]

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Step-by-step explanation:

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Eli and Samantha work at a dry cleaners ironing shirts. Eli can iron 20 shirts per hour, and Samantha can iron 35 shirts per hou

MrRa [10]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> the number of hours Eli worked

y ----> the number of hours Samantha worked

we know that

Eli and they ironed 400 shirts between them

----> equation A

Samantha worked 2 more hours than Eli

----> equation B

solve the system by substitution

substitute equation B in equation A

solve for x

Find the value of y

substitute the value of x in equation B

therefore

The number of hours Eli worked was 6 and the number of hours Samantha worked was 8

5 0

3 years ago

on the first four days of the week, Ella took 30 min 28 min 34 min and 31 min to get to school if the average for the week is 31

Mila [183]

It took 32 minutes for Ella to go to school on Friday.

Step-by-step explanation:

Time for first four days in minutes,

30,28,34,31

Let x be the time on Friday

Average = 31 min

As we know

$Average = \frac{Sum\ of\ term}{No.\ of\ terms}\\Average=\frac{30+28+34+31+x}{5}\\31=\frac{123+x}{5}$

Multiplying both sides by 5;

$5*31=\frac{123+x}{5}*5\\155=123+x\\x+123=155\\x=155-123\\x=32$

It took 32 minutes for Ella to go to school on Friday.

Keywords: Average, Addition

Learn more about addition at:

#LearnwithBrainly

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4 years ago

The equation s = 20h + 10 predicts Mary's score, s, on her next math test based on the number of hours, h, Mary studies. If the

Flura [38]

Answer:

s= 65

Step-by-step explanation:

The given quation s = 20h + 10

h= number of hours

Where h= 2.75 hours

If we substitute h into given model equation, we have

s = 20(2.75)+ 10

s=55 +10

s= 65

Hence, her score is 65

5 0

3 years ago