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3 years ago

7x - 2(-5 + 13) = 144

Mathematics

2 answers:

frosja888 [35]3 years ago

8 0

X= 160/7 im pretty sure

Nataly_w [17]3 years ago

3 0

First distributive property to get 7x+10-26=144, now add common like terms to get 7x-16=144 now add 16 to both sides to get 7x=160, now divide by 7 to leave x by itself and get x=22.86

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Find the size of the marked angles

morpeh [17]

Answer:

b = 55°

c = 35°

Step-by-step explanation:

b° = 180° - (85°+40°) = 180° - 125° = 55°

c° = 180° - (b°+90°) = 180° - (55°+90°) = 180° - 145° = 35°

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There are 10 circles and 2 triangles. What is the simplest ratio of triangles to total shapes?

barxatty [35]

Answer:

1:6

Step-by-step explanation:

Given that there are 10 circles and 2 triangles, the total number of shapes is equal to 10+2.

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5 0

3 years ago

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Pls solve the simultaneous equation in the attachment.

siniylev [52]

Answer:

Part a) The solution is the ordered pair (6,10)

Part b) The solutions are the ordered pairs (7,3) and (15,1.4)

Step-by-step explanation:

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$\frac{x}{2}-\frac{y}{5}=1$ ----> equation A

$y-\frac{x}{3}=8$ ----> equation B

Multiply equation A by 10 both sides to remove the fractions

$5x-2y=10$ ----> equation C

isolate the variable y in equation B

$y=\frac{x}{3}+8$ ----> equation D

we have the system of equations

$5x-2y=10$ ----> equation C

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$y=\frac{6}{3}+8$

$y=10$

The solution is the ordered pair (6,10)

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$xy=21$ ---> equation A

$x+5y=22$ ----> equation B

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$x=22-5y$ ----> equation C

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see the attached figure

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4 years ago

A part-time contractor at a manufacturing facility earns $11.00 per hour. He worked 414 hours on Tuesday, 314 hours on Wednesday

Shkiper50 [21]

Answer:

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Step-by-step explanation:

Assuming he worked:

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Thursday - 7.14

Friday - 5.14

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19.56(11) = $215.16

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3 years ago

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