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3 years ago

Help mee pleasee.....

Mathematics

1 answer:

julsineya [31]3 years ago

6 0

Answer:

x = 18
45°

Step-by-step explanation:

First part:

Write out an equation to represent the image: 2x + 3x = 90
Combine like terms: 5x = 90
Divide each side by 5 to cancel out the 5 next to x. It should now look like this: x = 18

Second part:

90 ÷ 2 = 45°

I hope this helps!

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Jacob is 5 5/6 feet tall. Linda is 5 1/4 feet tall. How much taller is Jacob?

SCORPION-xisa [38]

This problem boils down to 5/6 - 1/4

To subtract these fractions you need a common denominator.

I'll use 12

The first fraction becomes 10/12 and the second fraction becomes 3/12

10/12-3/12 = 7/12

So Jacob is 7/12 of a foot taller than Linda.

Also note than since 12 inches = 1 foot, you could say Jacob is 7 inches taller than Linda

6 0

3 years ago

Read 2 more answers

The point (8,-4) lies on a circle. What is the length of the radius of this circle if the center is located at (5,-7)

Kamila [148]

Notice the picture, the radius is just the distance from the
center to a point on the circle, thus

$\bf \textit{distance between 2 points}\\ \quad \\\\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{5}}\quad ,&{{ -7}})\quad 
% (c,d)
&({{ 8}}\quad ,&{{ -4}})
\end{array}\qquad 
% distance value
\\\\\\
\begin{array}{llll}
d = &\sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}\\
&\qquad \uparrow \\
&radius
\end{array}$

$\bf \begin{array}{llll}
d = &\sqrt{({{ 8}}-{{ 5}})^2 + ({{ -4}}-{{(-7)}})^2}\\
&\qquad \uparrow \\
&radius
\end{array}
\\\\\\
d=\sqrt{(3)^2+(-4+7)^2}\implies d=\sqrt{3^2+3^2}\implies d=\sqrt{18}
\\\\\\
d=\sqrt{9\cdot 2}\implies d=\sqrt{3^2\cdot 2}\implies d=3\sqrt{2}$

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3 years ago

What is the slope of the line that passes though the points:<br> (10,-2), (10,3)

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Undefined

Step-by-step explanation:

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3 years ago

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Answer:

280 grams of almond flour.

Step-by-step explanation:

She needs 70% of the flour to be almond flour

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3 years ago

A plane is descending into an airport. When its altitude is 3 1/2 miles, it is 250 miles from the airport. When its altitude is

shepuryov [24]

Answer: 1/2 miles

Step-by-step explanation:

Given the following:

Altitude (miles) - - - - - - - - - - distance (miles)

3 1/2 - - - - - - - - - - - - - - - - - - - 250

2 1/2 - - - - - - - - - - - - - - - - - - - - 175

Calculate the plane's altitude at 25miles from the airport

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5/2 = 175

(7/2 - 5/2) miles = (250 - 175)miles

1 mile = 75 miles

From the above, the plane craft 's altitude reduces by 1 mile for every 75 miles moved

Therefore, at a distance of 25 mile from the airport,

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Therefore, the altitude will reduce by 3 miles from the initial altitude at 250 miles

Therefore,

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Therefore, the plane craft will have an altitude of 1/2

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3 years ago