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3 years ago

Please help me with either one!

Mathematics

2 answers:

Serjik [45]3 years ago

4 0

9. The slash marks represent that x is 7 since they are congruent angles.

11. x = 60

A triangle is 180 degrees. Given is a 60 degree angle. Also slash marks are shown.

x + x + 60 = 180

2x + 60 = 180

-60 -60

2x = 120

2x/2 = 120/2

x = 60

I hope this helps you, have a wonderful day!

Vesnalui [34]3 years ago

3 0

Answer of 9 = 7 because those red arcs mean that both of those angles are the same, so if the angle on the right is 7, the angle on the left is 7

Answer of 11 = 60, because this is a equilateral triangle, which means all the sides are the same.

180 - 60 = 120 (180 is in the equation because all interior sides of a triangle add up to 180)

120 divided by 2 = 60

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gladu [14]

Answer:

I'm pretty sure that it's just the negatives of the coordinates, (-3,-4) (-3,-1) (-5,-1). I don't know for sure tho, sorry if its wrong.

Step-by-step explanation:

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2 years ago

Simplify. (−5 p 4 z 6 u) 3

ser-zykov [4K]

In this expression, solve the multiplication in the parenthesis.
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3 years ago

Simplify by using order of operations: 4 + (9∙2) ÷ (4 - 1) - 4

Stella [2.4K]

Answer:

Step-by-step explanation:

Use PEMDAS

P = parenthesis

E = Exponents

M = Multiplication*

D = Division*

A = Addition**

S = Subtraction**

*either can come first, it just depends which comes first in the equation.

**either can come first, it just depends which comes first in the equation.

Step 1 : Write equation 4( 9 × 2 ) ÷ ( 4 -1 ) - 4

Step 2: Solve in parenthesis 4(18) ÷ (3) - 4

Step 3: Solve multiplication  72 ÷ 3 - 4

Step 4: Solve division 24 - 4

Step 5 : Solve subtraction 20

3 0

3 years ago

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You wonder how many cars there are in your area. You call up the Ford dealership and ask how many Fords they’ve sold. They repor

SVETLANKA909090 [29]

If we take 1200 as the 100%, how much percentage is 700 of it?

well $\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
1200&100\\
700&x
\end{array}\implies \cfrac{1200}{700}=\cfrac{100}{x}\implies x=\cfrac{700\cdot 100}{1200}
\\\\\\
x=\cfrac{175}{3}$

so, (175/3)% or roughly 58.3%

now, how much is (175/3)% of 15000 ?
well, if we take 15000 as the 100%
then $\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
15000&100\\
x&\frac{175}{3}
\end{array}\implies \cfrac{15000}{x}=\cfrac{100}{\frac{175}{3}}
\\\\\\
\cfrac{15000\cdot \frac{175}{3}}{100}=x\implies \cfrac{5000\cdot 175}{100}=x$

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3 years ago

Carey is trying to decide between two guitars. The first had an original price of $160, but is on sale for $100. The second had

Zolol [24]

Subtract the sale price from the original price then divide the difference by the original price.

Guitar 1: 160 -100 = 60

60/160 = 0.375 x 100 = 37.5%

Guitar 2: 250 - 150 = 100

100/250 = 0.4 x 100 = 40%

The answer is the second guitar has a greater percent change of approximately 40%

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3 years ago

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