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3 years ago

Liz was testing Jane on solving with equations. She gave Jane the

Mathematics

1 answer:

GuDViN [60]3 years ago

7 0

Answer:

x/7+13=32

Step-by-step explanation:

work backward so subtract 13 from 32 and get 19 multiply it by 7 and get 133, to make sure your answers right just substitute 133 back into the equation

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How do u find the unit rate? <br> Pls explain it with 18 miles in 3 hours <br> thx

Tomtit [17]

Let's turn this into a fraction using the given information we already have.

$\frac{18}{3} \frac{miles}{hour}$

We want the denominator, or the bottom part of the fraction, to be 1 in order for us to have a unit rate.

This fraction can be simplified if we divide both the numerator and denominator by 3.

Numerator: 18/3 = 6

Denominator: 3/3 = 1

Now we have

$\frac{6}{1} \frac{miles}{hour}$

Any number divided by 1 is equal to that number.

$6 \frac{miles}{hour}$

Thus, your unit rate is 6 miles per hour.

Have an awesome day! :)

~AgentCozmo4, Junior Moderator

4 0

3 years ago

Read 2 more answers

How much warmer is 82 then -40

tankabanditka [31]

122 degrees because you have to add both of them together to get the answer so just turn the negative number into a positive number and answer it like that

3 0

2 years ago

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How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

melomori [17]

Answer:

4x - 6 = 3x + 8.

Step-by-step explanation:

If the number is x then 4 times is 4x , then - 6 gives us 4x - 6.

Similar reasoning gives us 3x + 8.

5 0

4 years ago

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Johnny has a box filled with 10 black marbles and 5 purple marbles.What are the odd he pulls two purple marbles in a row without

LenaWriter [7]

Answer:

2/21

Step-by-step explanation:

The first purple is 5/15 and the second is 4/14. Multiply them together to get 2/21.

3 0

3 years ago

The lengths of two sides of a triangle are 10 and 24, and the third side is x. How many whole number values are possible for x.

solong [7]

Answer:

$20$ .

Step-by-step explanation:

In any triangle, the sum of the lengths of any two sides should be strictly greater than the length of the third side. For example, if the length of the three sides are $a$ , $b$ , and $c$ :

$a + b > c$ ,

$a + c > b$ , and

$b + c > a$ .

In this question, the length of the sides are $10$ , $24$ , and $x$ . The length of these sides should satisfty the following inequalities:

$10 + 24 > x$ ,

$10 + x > 24$ , and

$24 + x > 10$ .

Since $x > 0$ , the inequality $24 + x > 10$ is guarenteed to be satisfied.

Simplify $10 + 24 > x$ to obtain the inequality $x < 35$ .

Similarly, simplify $10 + x > 24$ to obtain the inequality $x > 14$ .

Since $x$ needs to be a whole number, the greatest $x$ that satisfies $x < 35$ would be $34$ . Similarly, the least $x\!$ that satisfies $x > 14$ would be $15$ . Thus, $x\!\!$ could be any whole number between $15\!$ and $34\!$ (inclusive.)

There are a total of $34 - 15 + 1 = 20$ distinct whole numbers between $15$ and $34$ (inclusive.) Thus, the number of possible whole number values for $x$ would be $20$ .

5 0

3 years ago