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3 years ago

What are two numbers that add up to 43 and their difference is 11?

Mathematics

1 answer:

LiRa [457]3 years ago

4 0

Answer:

27 and 16

Step-by-step explanation:

x + y = 43

x - y = 11

You can add up the two equations so the ys are cancelled out.

2x = 54

x = 27

Plug x in to find y.

27 - y = 11

y = 16

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Maggie is training to run a 6 mile race. Her training program has her increase her weekly long run each week. This week she ran

Korvikt [17]

Answer:

Maggie will run 5.85 miles next week.

Step-by-step explanation:

Given:

Maggie is training to run a 6 mile race.

This week Maggie ran = 4.5 miles

Also Given:

Next week she will run 1.3 times as far as she did this week.

We need to distance she will run next week.

Now we know Next week she will run 1.3 times as far as she did this week.

It means Distance to be run next week will be equal to 1.3 times distance she ran this week.

Framing in equation form we get;

distance she will run next week = $1.3\times 4.5 = 5.85 \ miles$

Hence Maggie will run 5.85 miles next week.

6 0

3 years ago

A bus traveled 150 mlles in 3 hours. At what average rate did the bus travel?

dezoksy [38]

50 Miles at an average rate

8 0

3 years ago

Question 3(Multiple Choice Worth 2 points) (13.02 LC) What unit of measurement would you use to measure the length of your foot?

labwork [276]

Answer: centimeter

Step-by-step explanation:

5 0

2 years ago

Fill in Sin, Cos, and tan ratio for angle x. <br> Sin X = 4/5 (28/35 simplified)

Fantom [35]

Answer:

Given: $\sin(x) = (4/5)$ .

Assuming that $0 < x < 90^{\circ}$ , $\cos(x) = (3/5)$ while $\tan(x) = (4/3)$ .

Step-by-step explanation:

By the Pythagorean identity $\sin^{2}(x) + \cos^{2}(x) = 1$ .

Assuming that $0 < x < 90^{\circ}$ , $0 < \cos(x) < 1$ .

Rearrange the Pythagorean identity to find an expression for $\cos(x)$ .

$\cos^{2}(x) = 1 - \sin^{2}(x)$ .

Given that $0 < \cos(x) < 1$ :

$\begin{aligned} &\cos(x) \\ &= \sqrt{1 - \sin^{2}(x)} \\ &= \sqrt{1 - \left(\frac{4}{5}\right)^{2}} \\ &= \sqrt{1 - \frac{16}{25}} \\ &= \frac{3}{5}\end{aligned}$ .

Hence, $\tan(x)$ would be:

$\begin{aligned}& \tan(x) \\ &= \frac{\sin(x)}{\cos(x)} \\ &= \frac{(4/5)}{(3/5)} \\ &= \frac{4}{3}\end{aligned}$ .

7 0

2 years ago

3x-2y=10 3x-2y=14 solve using substitution or elimination. What's the answer?

CaHeK987 [17]

I hope this helps you

-3x+2y= -10

3x-2y=14

-3x+2y+3x-2y= -10+14

0+0= 6

0=6 false it's not inconsistent

8 0

3 years ago

Read 2 more answers