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Illusion [34]
2 years ago
11

Find the value of x. * Please help

Mathematics
1 answer:
scZoUnD [109]2 years ago
7 0

Answer:

x = 78

Step-by-step explanation:

(x-8) + 20 = 90

x - 8 = 90 - 20

x - 8 = 70

x = 70 + 8

x = 78

Check:

(78-8) + 20 = 90

70 + 20 = 90

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13. The sum of the measures of angle Mand angle Ris 90°.
Sunny_sXe [5.5K]

Answer:

x=5

Step-by-step explanation:

If the sum of the measures of angle M and R is 90 degrees, and you know that angle R is 55 degrees, subtract angle R from the total angle. Then, solve for M

90 - 55 = 35

5x + 10 = 35

5x = 25

x = 5

8 0
3 years ago
The angles in a triangle are 100, 40, and 40 degrees. Classify the triangle by its angles and sides.
lara [203]

Answer:

F. Obtuse isosceles

Step-by-step explanation:

Since we have an angle that is 100 degrees, we have an obtuse angle

We have two angles that are 40, which means we have two sides that are equal length, because two angles have the same measure.  That means it is isosceles

The triangle is an obtuse isosceles

8 0
2 years ago
ANSWER ASAP GIVING BRAILIEST AND STUFF!
MrRissso [65]
The answer multiplied if it doubled the its times 2 tripled it’s timeS 3 quadruple then times 4
8 0
2 years ago
Read 2 more answers
What’s the value of x
Vladimir [108]

Answer:

C. x=42

Step-by-step explanation:

16 + 3x + y = 180

126 + 16 + y = 180

y = 38

16 + 3x + 38 = 180

54 + 3x = 180

3x = 126

x=42

3 0
3 years ago
Andre builds a form for a new cement step in the shape of a rectangular prism. The form he builds is 40 and 1/2 inches long, 10
posledela

Answer:

3240 in^3

Step-by-step explanation:

Step one:

given data

The dimension of the form

Length 40 and 1/2 inches long,

Depth 10 inches deep,

The width and 8 inches high

Step two:

The amount of cement is equivalent to the volume of the form

V=L*W*H\\\\V=40.5*10*8\\\\V=3240 in^3

Hence the volume of cement is 3240 in^3

8 0
3 years ago
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