3 years ago

Help plzz! 13 points and will give brainliest!

Mathematics

1 answer:

laila [671]3 years ago

5 0

Answer: This is rly confusing

Step-by-step explanation:

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×+2=17-4×<br> × equals what

wlad13 [49]

X = 3,

3+2=17-12

That’s correct

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Peter wrote five numbers. Which of peters numbers can be divided into 7 equal groups with 0 left over? Choose that all apply 56,

alexira [117]

Answer:

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3 years ago

Randall wants to mix 50 lb of nuts worth $2 per lb with some nuts worth $7 per lb to make a mixture worth $6 per lb. How many po

defon

A = nuts of $2/lb

B = nuts of $7/lb

let's say we'll mix "x" lbs of B to get a mixture with A of "y" lbs, therefore

$\bf \begin{array}{lcccl} &\stackrel{lbs}{quantity}&\stackrel{\textit{cost}}{per~lb}&\stackrel{\textit{cost}}{total}\\ \cline{2-4}&\\ A~ nuts&50&2&100\\ B~nuts&x&7&7x\\ \cline{2-4}&\\ mixture&y&6&6y \end{array} \\\\\\ \begin{cases} 50+x=\boxed{y}\\ 100+7x=6y \end{cases}\qquad \qquad \implies 100+7x=6\left( \boxed{50+x} \right) \\\\\\ 100+7x=300+6x\implies \blacktriangleright x=200 \blacktriangleleft$

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3 years ago

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aniked [119]

Answer:

I think C. is it

Step-by-step explanation:

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In a woodworking class, you need to make five triangles out of plywood. Each triangle has a height of 6 inches and a base of 14

vampirchik [111]

The area of a triangle can be calculated through the equation,
A = bh / 2
where A is area, b is base, and h is height.
Substituting the known values from the given above to the equation
A = (14 in)(6 in) / 2 = 42 in²
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total area = 5(42 in²) = 210 in²
Thus, the total area of the plywood needed is 210 in².

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4 years ago

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