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2 years ago

Express the quantity as a percentage if the second quantity question is 1500gm,3KG

Mathematics

1 answer:

klemol [59]2 years ago

5 0

Answer:

$\frac{1500}{3000| } = \frac{x}{100 } \\ \\ \frac{1}{2} = \frac{x}{100} \\ \\ x = 50\%$

Thus, the percentange is 50.

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Two angles are supplementary. One angle is 16° less than three times the other. Find the measures of the angles

Ivan

Answer:

Step-by-step explanation:

x and y are supplementary angles, so their sum is 180°.

x+y = 180°

x is 16° less than three times y

x = 3y - 16°

(3y-16°) + y = 180°

4y = 196°

y = 49°

x = 3y-16° = 131°

7 0

2 years ago

Is x^2y^5 simplified?

Marizza181 [45]

Yes it is indeed nothing else can be done to this problem

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2 years ago

Write an equation of the perpendicular bisector of the line segment whose endpoints are (−1,1) and (7,−5)

icang [17]

The equation is $y = \frac{3}{2} x - \frac{11}{2}$

<u>Explanation:</u>

We have to first find the mid-point of the segment, the formula for which is

$(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )$

So, the midpoint will be $(\frac{-1+7}{2} , \frac{1-5}{2} )\\\\$

= $(3,-2)$

It is the point at which the segment will be bisected.

Since we are finding a perpendicular bisector, we must determine what slope is perpendicular to that of the existing segment. To determine the segment's slope, we use the slope formula $\frac{y_2-y_1}{x_2-x_1}$

The slope is $\frac{-5-1}{7+1}$ = $-\frac{2}{3}$

Perpendicular lines have opposite and reciprocal slopes. The opposite reciprocal of $-\frac{2}{3}$ is $\frac{3}{2}$

To write an equation, substitute the values in y = mx + c

WHere,

y = -1

x = 3

m = 3/2

Solving for c:

$-1 = \frac{3}{2} X 3 + c\\\\-1 = \frac{9}{2}+c\\ \\c = \frac{-2-9}{2} \\\\c = \frac{-11}{2}$

Thus, the equation becomes:

$y = \frac{3}{2} x - \frac{11}{2}$

7 0

2 years ago

Two rectangles are similar. The ratio of the length of rectangle A to the length of rectangle B is 1:4. If the length of rectang

amid [387]

Answer:

3.5 meters

Step-by-step explanation:

1:4 = x:14 ; where x is the unknown length of A
1/4 = x/14 (Cross multiply)
Giving us, 4×x = 14×1
4x = 14 (Divide both sides by co-efficient of x, which is 4)
x = 14/4
x = 3.5
Therefore, the length of A is 3.5 meters.

8 0

2 years ago

Need help with solving this equation

irakobra [83]

I’m sorry that’s not my level but i would love to help

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2 years ago