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mars1129 [50]
2 years ago
5

9 + 10 = ? Hopefully you know this

Mathematics
2 answers:
Neko [114]2 years ago
7 0
It's either 21 or 19. It's up to you
Rasek [7]2 years ago
3 0
The answer will be 19
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70 points and i’ll give brainliest!! please answer all the questions on the page! must show work and how you got the answer. ple
Bezzdna [24]

6. One variable only so pretty straightforward.

length-x+4

width-x

x+x+4=80

2x=76

x=38

x+4=42

answer: length 42cm and width 38cm

7. Another money problem!

n-# of nickels

q-# of quarters

n=3+q

0.05n+0.25q=2.85

Substitution works like a charm!

0.05(3+q)+0.25q=2.85

0.15+0.05q+0.25q=2.85

0.3q=2.7

q=9

n=3+q

n=3+9

n=12

answer: 9 nickels and 12 quarters

8. One variable situation again.

Ann's money-2b+9

Betty's money-b

b+2b+9=60

3b=51

b=17

2b+9=43

answer: Ann has $43 and Betty has $17.

9. # of red m&m's-x+1

# of blue m&m's-x

x+1+x=13

x=6

x+1=7

answer: 6 blue and 7 red m&m's

10. a-number of adult tickets

s-number of student tickets

a+s=785 ----> a=785-s

5a+2s=3280

5(785-s)+2s=3280

-3s=-645

s=215

a+s=785

a+215=785

a=570

answer: 215 children tickets and 570 adult tickets

3 0
3 years ago
A baker decorates 42cupcakes in 30 minutes. She decorates cupcakes at a constant rate.
eimsori [14]

Answer: 1.4 min per min

Step-by-step explanation: sorry if wrong

8 0
2 years ago
What is 6(x+4)? Show work
natulia [17]
We will use distribution

we will multiply 6 to each variable and number in the parenthesis.
6 times x plus 6 times 4
which is 6x +24
8 0
3 years ago
Read 2 more answers
Solve 2x^2 + 3 = 5 by factoring. (use the big “X” method please!)
Talja [164]

Answer: x = -1, 1

Step-by-step explanation:

7 0
2 years ago
If m 1=55, what is m 5?
AleksAgata [21]
275 if i'm not mistaken
6 0
3 years ago
Read 2 more answers
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