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2 years ago

Which equation is a related equation

Mathematics

1 answer:

ki77a [65]2 years ago

4 0

D , because 28-9=21 and 21=x

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Angela shared a cab with her friends. When they arrived at their destination, they evenly divided the \$j$jdollar sign, j fare a

Galina-37 [17]

Answer:

$\$ (\frac{j+15}{3} )$

Step-by-step explanation:

There were three friends and the total fare was $j

Each of the friends pays $\$ (\frac{j}{3} )$ for their cab fare.

Since Angela also paid a $5 Tip

Total Amount Paid by Angela = Share of cab fare + Tip

$\$ (\frac{j}{3} ) + \$5$

We can simplify this further by taking the LCM.

$\$ (\frac{j}{3} ) + \$5=\$ (\frac{j+15}{3} )$

The total amount paid by Angela therefore is : $\$ (\frac{j+15}{3} )$

3 0

2 years ago

Allowing 3 feet for the door ,how much baseboard wen john need to enclose a square room where each wall measures feet ?

Dimas [21]

11x11=121

You have to minus the 3 feet of the door = 118

Hope this helps.

3 0

3 years ago

In the triangle below, what is the measure of A? ОА. 180° Ос. 30° ор. 90°

ICE Princess25 [194]

Answer:

60°

Step-by-step explanation:

Total angle measurement for a triangle is 180°

Equilateral triangle measures 60 on all angles. (60 + 60 + 60 = 180°)

This triangle is equilateral so it's angle is 60°.

Why is it equilateral? Because all sides of the triangle are equal (10 on all sides).

Hope this helps

3 0

2 years ago

Can anybody help me please

GREYUIT [131]

Question 7: Option 1: x = 33.5°

Question 8: Option 3: x = 14.0°

Step-by-step explanation:

Question 7:

In the given figure, the value of perpendicular and hypotenuse is given, so we have to use any trigonometric ratio to find the value of angle as the given triangle is a right-angled triangle

So,

Perpendicular = P = 32

Hypotenuse = H = 58

So,

$sin\ x = \frac{P}{H}\\sin\ x = \frac{32}{58}\\sin\ x = 0.5517\\x = sin^{-1} ( 0.5517)\\x =33.48$

Rounding off to nearest tenth

x = 33.5°

Question 8:

In the given figure, the value of Base and Perpendicular is given, we will use tangent trigonometric ratio to find the value of x

So,

Perpendicular = P = 5

Base = B = 20

So,

$tan\ x = \frac{P}{B}\\tan\ x = \frac{5}{20}\\tan\ x = 0.25\\x = tan^{-1} (0.25)\\x = 14.036$

Rounding off to nearest tenth

x = 14.0°

Keywords: Right-angled triangle, trigonometric ratios

Learn more about trigonometric ratios at:

#LearnwithBrainly

8 0

3 years ago

In a race, the mean time for three runners was 12.4 seconds and the mean

Ne4ueva [31]

Answer:

11.8

Step-by-step explanation:

3(12.4) + 6(11.5) = 37.2 + 69 = 106.2

106.2/9 = 11.8

4 0

3 years ago