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3 years ago

Need answered***

Mathematics

1 answer:

Deffense [45]3 years ago

3 0

Answer: #1 (B: 7/15 #2 (C: 6/18

Step-by-step explanation:

7 Yards to every 15 Feet, therefore it is a 7:15 ratio

6 Feet to every 18 inches, therefore it is a 6:18 ratio

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Eighth grade math. Please leave explanation!

kolbaska11 [484]

First multiply both sides by 7

Your equation now looks like this:

x-28=0

Now move the constant to the other side causing it to change signs

The negative now becomes a positive

x=28

Now you are left with your answer:

x=28

Hope this helps! :3

5 0

3 years ago

Read 2 more answers

you are going to borrow $71500.00 for 200 days you are to be loaned the money at an interest rate of 7.5% and you are given the

Pachacha [2.7K]

Answer:

given,

Amount borrowed = $71500

Time = 200 days

interest rate = 7.5 %

ordinary interest rate for year = $71500\times \dfrac{7.5}{100}$

= $5362.5

exact interest rate for the year = $71500\times \dfrac{7.5}{100}\times \dfrac{200}{365}$

= $2938.35

hence, the exact interest rate is less than the ordinary interest rate which means you should choose exact interest rate.

7 0

3 years ago

Suppose the path of a baseball follows the path graphed by the quadratic function ƒ(d) = –0.6d2 + 5.4d + 0.8 where d is the hori

GrogVix [38]

Answer:

The correct option D.

Step-by-step explanation:

The given function is

$f(d)=-0.6d^2+5.4d+0.8$

Where f(d) is the height of the ball at horizontal distance d.

Put f(d)=0, to find the distance where the ball touch the ground.

$0=-0.6d^2+5.4d+0.8$

Quadratic formula:

$d=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Using the quadratic formula we get

$d=\frac{-5.4\pm \sqrt{(5.4)^2-4(-0.6)(0.8)}}{2(-0.6)}$

$d=-0.146,9.146$

Therefore the ball is in air between d=-0.146 to d=9.146.

The distance can not be negative, therefore the ball remains in the air between d=0 to d=9.146.

$9.146\approx 9.15$

Therefore the correct option is D.

6 0

3 years ago

Which expression is equivalent to the given expression? -2x +8x -9 +4x +7x2 +2 A. B. C. D.

Crazy boy [7]

Answer:

The answer is " $7x^2 +10x -7$ "

Step-by-step explanation:

Let the given value is:

$\to \bold{-2x +8x -9 +4x +7x^2 +2}\\\\$

Solving the given value:

$\to7x^2 -2x +8x +4x-9 +2\\\\\to7x^2 +10x -7\\\\\to7x^2 +10x -7\\\\$

6 0

3 years ago

A fisherman can tow upstream at 4 mph and downstream at 6 mph. He started rowing upstream until he got tired and then rowed down

telo118 [61]

He went upstream 3 hours and downstream two. 4x3=12 6x2=12

He went 24 miles.

5 0

3 years ago