3 years ago

brianna practices the panio 30 minutes each day write an expression for the number of hours she practises in d days

Mathematics

1 answer:

Illusion [34]3 years ago

8 0

X=hours practiced
d=days practiced

x=1/2(d)

You might be interested in

he amount of money left in Alma’s bank account is expressed by the linear equation y = -27x + 577, where x represents the number

kow [346]

Answer:

After 16 weeks she will have 145 dollars left in her account.

Step-by-step explanation:

since 145 represents the amount of money in her account we will substitute that for "y" and solve for "x"

145=-27x+577

145-577=-27x

-432=-27x

-432/-27= -27x/-27

16=x

3 0

4 years ago

Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish

garik1379 [7]

Answer:

It will take them 3.43 hours.

Step-by-step explanation:

Let T denote the total cookies that need to be cocked. Observe that:

If Rosanne finishes the cookies in 6 hours, that means that she can make $\frac{T}{6}$ cookies per hour.
If Dorothy finishes the cookies in 8 hours, that means that she can make $\frac{T}{8}$ cookies per hour.

Then, by 1) and 2), if they work together would we able to make

$\frac{T}{6}+\frac{T}{8}=\frac{8T+6T}{48}=\frac{14}{48}T=\frac{7}{24}T$

cookies per hour.

Therefore, in order to finish the T cookies they will need $\frac{24}{7}\approx3.43 hours$

3 0

4 years ago

Which of the following describes a square root of 41?

andreev551 [17]

Answer:

the answer is b between 6 and 7

Step-by-step explanation:

i say this because the square root of 41 is 6.4031.

6.4031 is in between 6 and 7.

hope this helps :)

6 0

3 years ago

What is 7.47 divided by 3

hram777 [196]

7.47 divided by 3=2.49

3 0

3 years ago

Read 2 more answers

Which of the following terms best fits this definition?

elena-14-01-66 [18.8K]

Step-by-step explanation:

hope you can understand

8 0

2 years ago