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3 years ago

A store pays $10.56 fora map of Africa and marks the price up by

Mathematics

1 answer:

nignag [31]3 years ago

6 0

Essentially, 50% of $10.56 is $5.28.

This means that all we have to do is add $10.56 to $5.28, making $15.84

Side note: Another way that you can do this is by simply doing 1.5(10.56).

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If a= 2ft and c= 11ft. Find the missing side of the right triangle

dlinn [17]

Answer:

$\sqrt{117}$ or $3\sqrt{13}$

Step-by-step explanation:

The formula for finding the any side of the triangle is

$a^{2}+b^{2} =c^{2}$

We know that a=2 and c=11, so we can go ahead and plug those into the formula.

$2^{2}+b^{2} =11^{2}$

$4+b^{2} =121$

To find side b, we have to make it alone on one side. Subtract 4 on both side.

$b^{2} =117$

Now square root both sides, and that leaves us with:

$b=\sqrt{117}$ or $3\sqrt{13}$

6 0

2 years ago

Solve for a. a+(−7)=−17 What is the answer

luda_lava [24]

The answer would be -10

3 0

3 years ago

Read 2 more answers

Resolva os sistemas abaixo 2x+3y=80 3x+2y=70 X=8y X+4y=480

timurjin [86]

Solución 1: 2(x) + 3(y) = 80
solución 2: 3(x) + 2(y) = 70

3(y) + 2(x) = 80
2(y) + 3(x) = 70

2y = -3x + 70
y = -3x÷2 + 35

2x + 3(-3x÷ 2+35) = 80
-5x÷2 = -25
-5x = -50

5x = 50
x-intercept: 10
x = 10
y = -3x÷ 2+35

y = -(3÷2)(10)+35 = 20

x-interpcet: 10
y-intercept: 20
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
solución: x - 8y = 0
solución x + 4y = 480

-8y + x = 0
4y + x = 480

x-intercept (solución 2)
x = -4x + 480

x-intercept (solución 1)
4y + 180 - 8y = 0
-12y = 480

y-intercept: 40
x-intercept: 320

Buena Suerte!

7 0

3 years ago

The research of Eich and Metcalf would suggest that if you were really happy when you were learning math, you should be ________

omeli [17]

Your answer is "happy" based on mood-dependent memory research they conducted.

4 0

3 years ago

Read 2 more answers

What is the measure of angle 1?

frutty [35]

Sum of all the interior angles = (5-2)x180 = 540°
540 - 100 - 120 - 100 - 90 = 130°
So the last unknown angle in the polygon is 130°

Sum of all the adjacent angles on a straight line is 180°
Angle 1 = 180 - 130 = 50°

3 0

2 years ago