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3 years ago

Can someone please help me with this question? From question A through to question d. Thank you

Mathematics

1 answer:

Alexandra [31]3 years ago

4 0

I can only help with d... the answer is 38.

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Chukwu, Abdul and kunle are to share $142, such that Abdul gets $11.00 less than Chukwu and $7.00 more than Kunle. How much is C

Elena-2011 [213]

Answer:

Chukwu's share is of $57.

Step-by-step explanation:

This question is solved by a system of equations.

I am going to say that:

Chukwu's share is x.

Abdul's share is y.

Kunle's share is z.

Chukwu, Abdul and kunle are to share $142

This means that $x + y + z = 142$

Abdul gets $11.00 less than Chukwu

This means that:

$y = x - 11$

$7.00 more than Kunle.

This means that:

$y = z + 7$

$z = y - 7$

$z = x - 11 - 7$

$z = x - 18$

How much is Chukwu's share?

We want to find x, so:

$x + y + z = 142$

$x + x - 11 + x - 18 = 142$

$3x - 29 = 142$

$3x = 171$

$x = \frac{171}{3}$

$x = 57$

Chukwu's share is of $57.

7 0

4 years ago

Find 3 ratios that are equivalent to the given ratio. 36:42

drek231 [11]

Answer:

6:7
12:14
96:112

Step-by-step explanation:

Each of the values in the given ratio is a multiple of 6. It can be reduced to lowest terms by dividing by 6. Then equivalents can be formed by multiplying the basic ratio by any number of your choice

36:42 = 6:7

= 12:14 . . . . . . . multiply by 2

= 18:21 . . . . . . . multiply by 3

= 24:28 . . . . . . multiply by 4

= 96:112 . . . . . . multiply by 16

7 0

3 years ago

Write a quadratic function in standard form with zeros x = -3 and x = 1?

Anna71 [15]

You multiply (x-1)(x+3) to get x^2+2x-3

4 0

4 years ago

Which statement explains how the lines x+y=2 and y=x+4 are related

ohaa [14]

Answer: They are similar because they intersect with each other at (-1,3).

8 0

3 years ago

Which of the following are solutions to the equation sinxcosx = - 1/4

Dafna1 [17]

The equation is given below as

$\sin x\cos x=-\frac{1}{4}$

Recall that

$\begin{gathered} \sin 2x=2\sin xcosx \\ \text{which means that } \\ \frac{\sin2x}{2}=\sin x\cos x \end{gathered}$

Therefore, equating the two-equation, we will have

$\frac{\sin 2x}{2}=-\frac{1}{4}$

cross multiply, we will have

$\begin{gathered} \sin 2x=-\frac{1}{4}\times2 \\ \sin 2x=-\frac{1}{2} \end{gathered}$

Therefore,

we will get the arc sign of both sides in radians to get

$\begin{gathered} 2x=\sin ^{-1}(-\frac{1}{2}) \\ x=\frac{1}{2}\sin ^{-1}(-\frac{1}{2}) \end{gathered}$

In radians, the final answer will be

$\begin{gathered} x=\frac{7\pi}{12}+n\pi \\ \text{and} \\ x=\frac{11\pi}{12}+n\pi \end{gathered}$

Therefore,

The finals answers are OPTION A and OPTION D

3 0

1 year ago