Ask question

Ask question

All categories

3 years ago

13

Stacy studies math for 2\4 of an hour per day and science for

1 answer:

sergey [27]3 years ago

7 0

Answer: D

25/6 hours

Step-by-step explanation:

You might be interested in

Solve the iniequality 3x-3<9

expeople1 [14]

Answer:

3x

$3x < 3 + 9 \\ \\ 3x < 12 \\ \\ x = 4$

8 0

3 years ago

The length of each side of a square is 3 inches more than the length of each side of a small square. The sum of the areas of the

NeX [460]

Answer:

$\text{Smaller square's 15 inches, Bigger square's 18 inches}$

Step-by-step explanation:

GIVEN: The length of each side of a square is $3$ inches more than the length of each side of a small square. The sum of the areas of the square is $549$ inches.

TO FIND: the lengths of the sides of the two squares.

SOLUTION:

let the length of side of small square be $\text{x}$

Area of small square $=(\text{side})^2=\text{x}^2$

As length of each side of bigger square is $3\text{ inches}$ more than the smaller square

length of side of bigger square $=\text{x}+3\text{ inches}$

Area of bigger square $=(\text{x+3})^2$

Also

Sum of areas of both square $=549\text{ inch}^2$

$(\text{x})^2+(\text{x+3})^2=549$

$2\text{x}^2+6\text{x}+9=549$

$\text{x}^2+3\text{x}-270=0$

$\text{x}=15,-18$

as the length of side can never be negative

$\text{x}=15$

length of side of smaller square $=15\text{ inches}$

length of side of bigger square $=\text{x}+3\text{ inches}$ $=18\text{ inches}$

Hence the length of smaller and bigger square are $15\text{ inches}$ and $18\text{ inches}$ respectively.

7 0

3 years ago

When a whole number is multiplied by 104, how does the placement of the decimal point change?

Vera_Pavlovna [14]

Answer:

d

Step-by-step explanation:

6 0

3 years ago

1+1=<br> I need help please I am just seeing if this app really work

STatiana [176]

Answer:

1+1=2

Step-by-step explanation:

8 0

3 years ago

Sam bought an electric iron as a price of 25 less than the original price if the original price of it is $2500 at what price did

wlad13 [49]

Answer:

$2475 or $1875

Step-by-step explanation:

Assuming the question meant to say $25 less than the original price, it would be $2475 because $2500-$25= $2475

However, if the question meant to say that Sam bought the iron for 25% less than the original price, it would be $1875 because 2500*0.25= $625

$2500-$625= $1875

4 0

3 years ago