All categories

4 years ago

Which equation is equivalent to X/ +11 = 15

Mathematics

1 answer:

Lady bird [3.3K]4 years ago

7 0

√x + 11=15 x=16
√x= 15-11 x=16

You might be interested in

I dont understand pls help me

ryzh [129]

Answer:

the answer is the option B 35

Step-by-step explanation:

first, add 4 and 3. you will get 7. Next, multiply 7 by 5 and you will get the answer :35

$5(3 + 4) \\ 5(7) \\ 35$

4 0

3 years ago

Read 2 more answers

Simita has 25 coins, consisting of 10c and 5c, which total $2.25. how many of each does she have?

Ilya [14]

Answer:

10c = 20

5c = 5

Step-by-step explanation:

Let x be the number of 10c coins; let y be the number of 5c coins. The total is $2.25, so the amount of 10c and 5c coins will add to that. Simita has 25 coins, so x and y, the number of coins, will have to add to 25. Hence, solve the simultaneous equation.

10x + 5y = 225 (1) - times by 0

x + y = 25 (2) - times by 5

10x + 5y = 225 (1)

5x + 5y = 125 (2)

Then, take equation 2 away from equation 1.

5x = 100

x = 20

Substitute x back into the original equation.

x + y = 25

20 + y = 25

y = 5

7 0

3 years ago

William Arsenio is remodeling his home in order to save money he is upgrading the plumbing himself he needs 27 pieces of copper

Reptile [31]

Answer:

Yes.

2 feet

Step-by-step explanation:

Pieces of copper that Arsenio needs in total = 27 pieces

Length of each piece of copper tubing that he needs = 2/9 foot

Length of available tubing = 8 foot

Since, the length of each piece is 2/9 foot, the length of 27 pieces would be:

$\frac{2}{9} \times 27 = 6$

This means, Arsenio needs 6 feet in total for the copper tubing. Since he got 8 feet in total, he has sufficient amount of tubing available.

After making the 27 pieces, he will be left with 8 - 6 = 2 feet of tubing.

6 0

3 years ago

Help please!!!!!!!!!!!!!!!

lana66690 [7]

Answer:

y=6

Step-by-step explanation:

You always want to do X first but here you just see the number under y and you can just see 6 is across im not good at explaining but im sure its 6

3 0

3 years ago

Read 2 more answers

if $38 is invested at a simple interest rate of 2% per year, what would the total account balance be after forty years?

Debora [2.8K]

The answer is$30.40

I=P×R×T

I=38×.02×40

I=30.40

6 0

3 years ago