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den301095 [7]
3 years ago
9

Solve the proportion 7/5=21/x

Mathematics
2 answers:
Paha777 [63]3 years ago
8 0

Answer:

15

Step-by-step explanation:

7/5=21/x

or, 7x=21*5

or, x=(21*5)/7

x=15

kondaur [170]3 years ago
3 0

Answer:

x=15

Step-by-step explanation:

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Atul has 2/3 lb of candy. Jose has 3/5 lb and Maria has 1/2 lb less then José. How many more pounds of candy does Atul have than
liraira [26]

Given:

Atul has \dfrac{2}{3} lb of candy.

Jose has \dfrac{3}{5} lb of candy.

Maria has \dfrac{1}{2} lb less than Jose.

To find:

How many more pounds of candy does Atul have than Maria?

Solution:

Since, Maria has \dfrac{1}{2} lb less than Jose, therefore

Maria has = \dfrac{3}{5}-\dfrac{1}{2} lb

Maria has = \dfrac{6-5}{10} lb

Maria has = \dfrac{1}{10} lb

Difference between the candies Atul and Maria have.

Difference = \dfrac{2}{3}-\dfrac{1}{10} lb

Difference = \dfrac{20-3}{30} lb

Difference = \dfrac{17}{30} lb

Therefore,  Atul have \dfrac{17}{30} lb of candy more than Maria.

6 0
3 years ago
Determine the domain and the range for the relation in interval notation​
Harlamova29_29 [7]

Answer:

0≤x≥3

2≤y≥4

Step-by-step explanation:

3 0
3 years ago
LITERALLY THE MOST ROCK HARD QUESTION I HAVE EVER TRIED TO SOLVE PLEASE HELP ME OUT BECAUSE MY EYES ARE BURNING FROM STARING AT
ivolga24 [154]
1) You will need to simplify both sides of the inequality. 
6x-13 \ \textless \  6x-12


2) Now you will need to subtract the like terms which leaves you with 
-13\ \textless \ -12


We cannot do anything else so the answer will be a<span>ll real numbers are solutions.</span>
6 0
3 years ago
Jade has $60. She wants to buy some movies that cost $11 each. Jade wants to have at least $20 remaining.
Anni [7]

Answer:

60-11x < 20

Step-by-step explanation:

Let's first set out all the information we know.

  • Jade has only $60, so we cannot go above the amount she has.
  • Each movie costs $11
  • She wants at LEAST $20 remaining  

So, the first thing that will be in the inequality would be $60. Since you are wasting money, you have to subtract.

The thing that will be subtracted more than once is $11, so it will have the variable "x" added to it.

What we have so far is:

60-11x

Because this is an inequality, we will have a less than sign.

After that, we can conclude that $20 will come next because that is at the end of the problem.

So, the answer is:

60-11x < 20

5 0
3 years ago
A pair of jeans is marked 25% off. If the original price is $31.50, what is the discount amount that will be taken off of the or
Tresset [83]

Answer: $7.88

Step-by-step explanation: Twenty five percent of 31.50 is 7.875.

5 0
4 years ago
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