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Monica [59]
4 years ago
7

mr.rivera bought some erasers to give his students. on monday , mr.rivera gave out 22 erasers. on Tuesday, he gave out 39 earser

s. on Wednesday , he bought 76 earsers. now he has 193 . how many earsers did mr.rivera start with ?
Mathematics
1 answer:
Mumz [18]4 years ago
6 0

Answer:

178 ERASERS

Step-by-step explanation:

YOU NEED TO START BACKWARDS. HE BOUGHT 76 ERASERS AND HE HAS 193, SO WHATEVER HE HAD AT THE END OF TUESDAY+76 IS HOW MUCH HE HAS ON WEDNESDAY. 193-76=117. ON TUESDAY, HE STARTED WITH ERASERS AT END OF TUESDAY+39 ERASERS. 117+39=156. ON MONDAY, HE STARTED WITH END OF MONDAY+22 ERASERS. 156+22=178

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What is the value of 1/2+1/3
RideAnS [48]

Answer:

5/6

Step-by-step explanation:

1/2=3/6

1/3=2/6

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5/6

4 0
3 years ago
In analyzing a line graph, why is slope important?
Nesterboy [21]

Answer:

The slope of the line reflects the actual trend of the data

Step-by-step explanation:

<u><em>The options of the question are</em></u>

a. The slope should be negative.

b. The spacing for each axis must be chosen so that the line reflects a positive slope.

c. The slope of the line reflects the actual trend of the data.

d. The slope of a line is not important in analyzing a line graph

we know that

The slope of a line is the steepness of the line ( the change in 'y' over the change in 'x',)

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

where

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4 0
3 years ago
The ordered pair (5,1) satisfied which of the following equations:
Marta_Voda [28]

Replace X and Y in the given equations and see if they are true:

2(5) + 2(1) = 10+2 = 12... does not equal 11 So this in not right.

2(5) +3(1) = 10 + 3 = 13 this is correct.


The answer would be: 2x+3y=13

8 0
3 years ago
The length of a rectangle is equal to the 4 in more than the width if the perimeter of a rectangle is 46 in what is the length
Svet_ta [14]
L=4+W
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46=2(4+W)+2W
46=8+2W+2W
46=8+4W
38=4W
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L=4+9.5
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Hope this helps. I can explain more if needed!!
6 0
3 years ago
Given f(x)=x^2+2x-2, evaluate f(-2)​
sergiy2304 [10]

Step-by-step explanation:

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Hope it will help :)

6 0
3 years ago
Read 2 more answers
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