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3 years ago

14

Please explain 10-15. Thank you

2 answers:

Reptile [31]3 years ago

4 0

5 because 15 -10 is 5

boyakko [2]3 years ago

3 0

10. 79 and x are vertical angles so they are equal to each other
11. 62 and x are complentary so they should add up to 90. Subtract 62 from 90 or setup the equation 62+x=90 to find your answer
12. 47 and x are supplementary angles so they add up to 180. Subtract 47 from 180 or setup the equation 47+x=180 to find your answer
13. 43+x must equal 90 because the two angles are complementary. After solving for that, subtract 90 from 180 to find y.
14. To find x subtract 88 from 180. x and z are vertical angles so they are equal, and 88 and y are vertical angles so they are also equal.
15. To find x subtract 90 from 180. To find y add 42 and 53 and subtract it from 180.

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6 stools and 4chairs cost$58 but 5 stools and 2 chairs cost$ 35 find the cost of each stool and each chair

Ivahew [28]

Stool = s, chair = c
6s+4c=58 ---(1)
5s+2c=35 ---(2)

(2)*2; 10s+4c=70 ---(3)
(3)-(1); 4s=12
so s=3
from (2)
5s+2c= 35
5(3)+2c=35
2c = 35-15
2c = 20
so c=10

then the cost of each stool is $3 and the cost of each chair is $10

6 0

3 years ago

1. Emily is allowed to spend 60% of her allowance. The remaining 40% she deposits into her

kkurt [141]

Answer:

5

Explanation:

40x 200
—— ——
40 40
X=5

4 0

3 years ago

Read 2 more answers

given directed line segment CD, if point E divides CD three-fourths of the way from C to D, find the coordinates of E then plot

Solnce55 [7]

The coordinates of point E is (-2, -1.5)

<h3>How to determine the coordinates of point E?</h3>

The complete question is added as an attachment

The given parameters are

C = (1, 6)

D = (-3, -4)

The ratio 3/4 can be represented as:

m : n = 3 : 1

So, the coordinate of point E is

E = 1/(m + n) * (mx2 + nx1, my2 + ny1)

So, we have:

E = 1/(3 + 1) * (3 * -3 + 1 * 1, 3 * -4 + 1 * 6)

Evaluate

E = 1/(4) * (-8, -6)

This gives

E = (-2, -1.5)

Hence, the coordinates of point E is (-2, -1.5)

Read more about line segments at

brainly.com/question/17374569

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6 0

2 years ago

Robert has 3/4 of a candy bar like he wants to share it with himself and two friends what fraction of the candy bar will each pe

stira [4]

Answer:

significa que 1 barra de chocolate dividida entre 4 amigos es igual a 1 4. Por lo tanto, cada persona recibe 1 4 de la barra”. 6.

Step-by-step explanation:

5 0

1 year ago

Read 2 more answers

Vince has a rectangular rug in his room with an area of 10 ft the length of the rug is 18 inches longer than the width what coul

aev [14]

The length of the rug is 4 ft.

The width of the rug is 2.5 ft.

Explanation:

The area of the rug is 10 ft.

The length of the rug be l.

Let us convert the inches to feet.

Thus, $18 inches = 1.5 ft$

Thus, the length of the rug is $l=1.5+w$

Let the width of the rug be w.

Substituting these values in the formula of area of the rectangle, we get,

$A=length\times width$

$10=(1.5+w)(w)\\10=1.5w+w^2\\w^2+1.5w-10=0$

Solving the expression using the quadratic formula,

$w=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Substituting the values, we have,

$$w=\frac{-15 \pm \sqrt{15^{2}-4 \cdot 10(-100)}}{2 \cdot 10}\\$

$w=\frac{-15 \pm \sqrt{4225}}{20}$

$w=\frac{-15 \pm 65}{2 0}$

Thus,

$w=\frac{-15 + 65}{2 0}\\w=\frac{50}{20} \\w=2.5$ and $w=\frac{-15 - 65}{2 0}\\w=\frac{-80}{20} \\w=-4$

Since, the value of w cannot be negative, the value of w is 2.5ft

Thus, the width of the rug is 2.5ft

Substituting $w=2.5$ in $l=1.5+w$ , we get,

$l=1.5+2.5\\l=4$

Thus, the length of the rug is 4 ft.

4 0

3 years ago