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3 years ago

Quiz

Mathematics

1 answer:

s2008m [1.1K]3 years ago

7 0

Answer:

Point And line

Step-by-step explanation:

Have a nice day

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What is 9+5x-5+3x? What could it be

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8x+4 would be the answer if you combine like terms

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3 years ago

A 25-foot-long footbridge has two diagonal supports that meet in the center of the bridge. Each support makes a 65∘ angle with a

mamaluj [8]

The length x of a diagonal support, to the nearest tenth of a foot?

x≈ 13 feet

Cuz I said so

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1 year ago

Please answer! It would be appreciated if work is also shown!

borishaifa [10]

Quantity of paint left = $\frac{389}{480}$ gallons

Solution:

Quantity of yellow paint = $1\frac{1}{5}=\frac{6}{5}$ gallons

Quantity of green paint = $1\frac{1}{6}=\frac{7}{6}$ gallons

Quantity of blue paint = $\frac{7}{8}$ gallons

Quantity of paint used = $\frac{3}{4}$ gallons of each paint

Quantity of paint left = $1-\frac{3}{4}=\frac{1}{4}$ gallons of each paint

Quantity of paint left = $(\frac{6}{5}+\frac{7}{6}+\frac{7}{8})\times\frac{1}{4}$

Taking LCM for 5, 6, 8, we get LCM = 120

$(\frac{6}{5}+\frac{7}{6}+\frac{7}{8})\times\frac{1}{4}=(\frac{144}{120}+\frac{140}{120}+\frac{105}{120})\times\frac{1}{4}$

$=(\frac{389}{120})\times\frac{1}{4}$

$=\frac{389}{480}$

Hence, Mark will have $\frac{389}{480}$ gallons of paint left after painting the mural.

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3 years ago

Write and solve an equation to find the number. The sum of -5 and a number is -15. a. -5 + n = -15; -10 c. n + 5 = -15; -20 b. 5

lisabon 2012 [21]

Let the number = x
Given: The sum of -5 and a number is -15
Then,
x - 5 = -15
or x = -15 +5 = -10.

Hence, the number is -10

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3 years ago

One number is the square of another. their sum is 182. find the numbers.

wariber [46]

$n-first\ number\\n^2-second\ number\\\\\text{The equation:}\\\\n+n^2=182\qquad\text{subtract 182 from both sides}\\\\n^2+n-182=0\\\\n^2+14n-13n-182=0\\\\n(n+14)-13(n+14)=0\\\\(n+14)(n-13)=0\iff n+14=0\ \vee\ n-13=0\\\\\boxed{n=-14\ or\ n=13}\\\\n^2=(-14)^2=196\ ot\ n^2=13^2=169\\\\Answer:\ \boxed{196\ and\ -14\ or\ 169\ and\ 13}$

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3 years ago