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Temka [501]
3 years ago
7

Question 10 of 25

Mathematics
1 answer:
kirill [66]3 years ago
8 0

Answer:

x = 04

Step-by-step explanation:

7x-2(x-10)=40

7x-2x+20=40

5x=20

therefore x=20/5

that is 4

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66. Which of the following shows the fractions 11/3 , 25/7 , and 18/5 in order from least to greatest?
qwelly [4]
11/3, 25/7, 18/5. Multiply to find common denominators.
8 0
4 years ago
(2x+5) = (3x-33)
aleksandr82 [10.1K]

Answer:

x=38

Step-by-step explanation:

(2x+5)=(3x-33)

2x-3x=-33-5

-x=-38

x=38

3 0
3 years ago
Read 2 more answers
What is the value of x?
soldi70 [24.7K]

Answer:

5\sqrt{3}

Step-by-step explanation:

A triangle with angles of 30-60-90 will always have sides that measure in the following proportions:

The side opposite the 30* angle = a

The side opposite the 60* angle = a\sqrt{3}

The side opposite the 90* angle = 2a

(I used "a" here because your question uses "x" and I don't want to confuse things, but usually people use "x" rather than "a")

They gave us that the hypotenuse (the side opposite the 90* angle) is 10, from there we can figure out the other sides:

Since the side opposite 90* is 2a, and 2a = 10, divide 10 by 2 and you get a = 5.

Once we know what "a" is, we can fill in the rest:

30* = 5

60* = 5\sqrt{3}

90* = 10

3 0
3 years ago
A cookie recipe required 1 1/3 cups of sugar. If Mrs. Lee has 7 cups of sugar, how many recipes of cookies can she bake? Need an
Vitek1552 [10]
\frac{21}{3} = 7 \: cups

\frac{21}{3} ÷ \frac {4}{3} = 5 \frac{1}{3}

She can make 5 batches of cookies and have

\frac{1}{3} \: cups

left
3 0
3 years ago
5. Two sides of a right triangle are 8 inches and 12 inches. What is the length of the Hypotenuse​
Andrej [43]

Answer:

19.7ft

Step-by-step explanation:

o^2+a^2=h^2

\dpi{100} h^{2}=(10ft)^{2} +(17ft)^{2}

h^2=100ft^2+289ft^2

h=389ft^2−−−−−√

→19.7ft

6 0
3 years ago
Read 2 more answers
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