All categories

2 years ago

The difference between 5 and a certain number is divided by 3. find the number if is equal to 7.

Mathematics

2 answers:

alukav5142 [94]2 years ago

6 0

Answer:

x=-16

Step-by-step explanation:

Ler the number be x.

Now we have,

$(5-x)/3=7\\5-x=21\\5-21=x\\x=-16$

Hope it will help you.

Talja [164]2 years ago

4 0

Answer:

Let the certain number be x.

Now,By question,

(5-x)÷3=7
(5-x)=7×3
5-x=21
x=21+5
x=26

You might be interested in

Find the 10th term of geometric sequence 3,15,75,375

Bess [88]

Answer:

Step-by-step explanation:

In a geometric sequence, the next term is a constant times the previous term. This constant is determined by dividing the second term by the first, here giving 5. The remaining terms are checked to see that each is 5 times the previous. 75 is 15×5, 375 is 75×5.

Alternately, the nth term is first term times k^(n-1).

Here, that's 3×5^(10-1), 3×5^9=5859375

7 0

3 years ago

Can someone please help me with these 2 math questions!

kondaur [170]

Step-by-step explanation:

The additional information is GD ≅ CD

The additional information is ∠LQR ≅ ∠PQR

SSS ⇒ 3 sides in the 1st Δ ≅ 3 sides in the 2nd Δ

SAS ⇒ 2 sides and including angle in the 1st Δ ≅ 2 sides and including angle in the 2nd Δ

7 0

3 years ago

Read 2 more answers

Please solve this, will rate 5 stars and mark as STAR!

Nina [5.8K]

Answer:

$\boxed{5 \cdot \sqrt{2} \cdot \sqrt[6]{5} }$

Step-by-step explanation:

$\sqrt[3]{250} \cdot \sqrt{\sqrt[3]{10} }$

$\sqrt{\sqrt[3]{10} } \implies (10^\frac{1}{3} )^\frac{1}{2} =10^\frac{1}{6} =\sqrt[6]{10}$

$\therefore \sqrt{\sqrt[3]{10} }=\sqrt[6]{10}$

$\text{Solving }\sqrt[3]{250} \cdot \sqrt{\sqrt[3]{10} }$

$250=2 \cdot 5^3$

$\sqrt[3]{250}=\sqrt[3]{2\cdot 5^3}=5 \sqrt[3]{2}$

Once

$\sqrt[6]{2} \cdot \sqrt[6]{5} = \sqrt[6]{10}$

We have

$5 \sqrt[3]{2} \cdot \sqrt[6]{2} \cdot \sqrt[6]{5}$

We can proceed considering the common base of exponentials

$\sqrt[3]{2} \cdot \sqrt[6]{2} = 2^{\frac{1}{3}} \cdot 2^{\frac{1}{6} } = 2^{\frac{3}{6} } = 2^{\frac{1}{2} }=\sqrt{2}$

Therefore,

$5 \sqrt[3]{2} \cdot \sqrt[6]{2} \cdot \sqrt[6]{5} = 5 \cdot \sqrt{2} \cdot \sqrt[6]{5}$

7 0

3 years ago

calvin was earning $40 an hour giving basketball lessons, but decided to lower his prive to $34. What percent did he decrease hi

Julli [10]

Answer:

15%

Step-by-step explanation:

$40 : 100 = 0,4

1% is $0,4

$6 : 0,4 = 15%

So the percentage is 15%.

7 0

2 years ago

A Chef buys 9 cucumbers, 18 peppers and 21 tomatos at the farmers market. Cucumbers ae 6 for $2, pEPPERS ARE 12 for $9 and tomat

Musya8 [376]

In this question, you are given 3 separate vegetables without single price. If you want to solve it step by step, it will be easier to count each vegetable price before hand. The price would be:
Cucumber: 2$/6 pieces= $0.33 /piece
Pepper: $9/12 pieces= $0.75/piece
Tomatoes: 4$/6 pieces= $0.66/piece

Then the total cost for the chef shopping item would be: 9 * $0.33 + 18 * $0.75 + 21* $0.66= $3 + $13.5+ $14= $30.5

6 0

3 years ago

The difference between 5 and a certain number is divided by 3. find the number if is equal to 7.​

The difference between 5 and a certain number is divided by 3. find the number if is equal to 7.