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Vedmedyk [2.9K]
3 years ago
13

Solve the equation using mental math. 7 + r = 15

Mathematics
2 answers:
VladimirAG [237]3 years ago
7 0

Answer:

\displaystyle 8 = r

Step-by-step explanation:

7 + r = 15

- 7 - 7

________

\displaystyle r = 8

I am joyous to assist you anytime.

mrs_skeptik [129]3 years ago
5 0

Answer:

r = 8

Step-by-step explanation:

7 + 8 = 15

so r = 8!

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There are 9 students in a service club. The club is making gift baskets for children in a hospital. Each club member donated 4 c
VladimirAG [237]

Answer:

Step-by-step explanation:

Let x represent the number of toys that each club member donated.

There are 9 students in a service club.

If each club member donated 4 children's books for the baskets, it means that the total number of books donated by the club members would be

9 × 4 = 36

If each club member also donated an equal number of toys. It means that the total number of toys donated by the club members would be

9 × x = 9x

A total of 63 items were collected for the baskets. Therefore, the linear equation that you can use to find how many toys each club member donated would be

9x + 36 = 63

4 0
3 years ago
What percent of 88 is 132?
sp2606 [1]
150% i believe. If im wrong i apologize.
3 0
3 years ago
How many additional cups of sugar are needed?
storchak [24]

Answer:

6

Step-by-step explanation:

since p =s, and p=6,

s=6.

8 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
hjlf
The answer is the last option.

All you have to do is subtract the 1 on both side of the equation to set it to 0 to get it into the general form.
8 0
3 years ago
Help me salve 2x+17=5x-10
Genrish500 [490]
<span>2x+17=5x-10
2x - 5x = -10 -17
-3x = -27
   x = 9

answer
x = 9</span>
5 0
4 years ago
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