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Irina-Kira [14]
3 years ago
7

Twice a number m minus three equals the sum of m and five

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

2m - 3 = m + 5

m = 8

2(8) - 3 = 13

(8) + 5 = 13

m = 8

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What is the ratio of boys to girls in Mrs. Carlton's class, which has a total of 31 students, 14 of whom are girls?
saw5 [17]

Answer:

17:14 or 17 to 14

Step-by-step explanation:

since you know there are 14 girls, subtract 14 from 31 and then you'll get 17. since its asking for a ratio of boys to girls not girls to boys, you put boys first, then girls. so your answer will be 17:14

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2 years ago
In the triangle below, what is the length of the side opposite the 60° angle?
liubo4ka [24]
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What are the solutions of this quadratic equation?<br> x + 10 = 0
mars1129 [50]
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3 years ago
What is the slope-intercept of the line containing the point (-5, 1) and having the slope 7
olganol [36]
Answer: The first choice ( y=7x+36)

Explanation:
Since we know the slope is 7 and there is a point of (-5,1) we can easily find the b (y intercept).
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4 0
2 years ago
Are they scaled copies or not? If so how do I find out?
Alenkinab [10]

1) <u>Find the length of the diagonals of the greater rhombus</u>

NJ=9 units

XY=6 units

Find the the ratio

NJ/XY=9/6-------> 3/2

2) <u>Find the length of the diagonals of the smaller rhombus</u>

HS=6 units

ZC=4 units

Find the the ratio

HS/ZC=6/4-------> 3/2

so

NJ/XY=HS/ZC--------> the rhombus are similar

the scale factor is equal to ------> 3/2=1.5

measure greater rhombus =scale factor*measure smaller rhombus

measure greater rhombus =1.5*measure smaller rhombus

measure smaller rhombus=(measure greater rhombus/1.5)

therefore

<u>the answer is</u>

Yes , they are a scaled copies and the scale factor is equal to 1.5


8 0
3 years ago
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