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3 years ago

10

What is the area of a rectangle that measures 4 cm by 12cm

1 answer:

Softa [21]3 years ago

8 0

A = l*w
A = 4*12 = 48cm^2
The area of the rectangle is 48cm^2 (cm squared)

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Brainliest for the correct answer :)

KiRa [710]

$\huge \mathrm{ \underline{ \underline{Àñswér}}}$

The Area of Shaded region is equal to the difference in Area of rectangle and Area of triangle .

let's solve for area of rectangle :

$➢ \: \: length \times width$

$\longrightarrow8 \times 3x$

$\longrightarrow24x$

Now, Area of Triangle :

$➢ \: \dfrac{1}{2} \times base \times height$

$\longrightarrow \dfrac{1}{2} \times 4 \times x$

$\longrightarrow2x$

So, the area of the shaded region in terms of x :

$\longrightarrow24x - 2x$

$\longrightarrow22x$

And since, Area of Shaded region = 44 cm²

By equating the area, we get

$\large \boxed{ \boxed{22x = 44}}$

Value of x = 2

$\mathrm{✌TeeNForeveR✌}$

4 0

3 years ago

Read 2 more answers

2/3x+5=7/3 <br> How do you solve this!

TEA [102]

You want to start by subtracting 5 from both sides to get 2/3x=-8/3 then cross multiply to get whole numbers which is 6=-24x then your gonna want to isolate the variable so divide both sides by -24 to get 6/-24=x then you can simplify to x=-1/4

4 0

2 years ago

Pleasee help me guyss .

Setler79 [48]

Answer:

24%

Step-by-step explanation:

25 - 19 = 6

25 = 100%

2.5 = 10%

1.25 = 5%

0.25 = 1%

5 = 20%

1 = 4%

6 = 24%

Hope this helps :)

3 0

3 years ago

Read 2 more answers

A pet store sells goldfish and hermit crabs,

Elis [28]

Answer:

$Cost = \$28$

Step-by-step explanation:

Given

Represent Goldfish with g and hermit crabs with h.

The first statement, we have:

$7g + 3h = 26$

The second statement, we have:

$4g + 5h = 28$

Required

Determine the selling price of 6 goldfish and 4 hermit crabs

The equations are:

$7g + 3h = 26$ --- (1)

$4g + 5h = 28$ --- (2)

Make g the subject in (2)

$4g + 5h = 28$

$4g = 28 - 5h$

Divide both sides by 4

$g = \frac{1}{4}(28 - 5h)$

Substitute $\frac{1}{4}(28 - 5h)$ for g in (1)

$7g + 3h = 26$

$7(\frac{1}{4}(28 - 5h)) + 3h = 26$

$\frac{7}{4}(28 - 5h) + 3h = 26$

Multiply through by 4

$4 * \frac{7}{4}(28 - 5h) + 4*3h = 26*4$

$7(28 - 5h) + 4*3h = 26*4$

Open bracket

$196 - 35h + 12h = 104$

$196 -23h = 104$

Collect Like Terms

$-23h = 104-196$

$-23h = -92$

Make h the subject

$h = \frac{-92}{-23}$

$h = \frac{92}{23}$

$h = 4$

Substitute 4 for h in $g = \frac{1}{4}(28 - 5h)$

$g = \frac{1}{4}(28 - 5*4)$

$g = \frac{1}{4}(28 - 20)$

$g = \frac{1}{4}(8)$

$g = 2$

This implies that:

1 goldfish = $2

1 hermit crab = $4

The cost of 6 goldfish and 4 hermit crabs is:

$Cost = 6g + 4h$

$Cost = 6*\$2 + 4*\$4$

$Cost = \$12 + \$16$

$Cost = \$28$

5 0

3 years ago

Angela practices piano for 5 hours on Sundays amd for 3 hours on all other days of the week. How many hours doea Angela practice

Kitty [74]

Answer:8 x 365=2920

Step-by-step explanation:

First, you add 5 + 3 which equals 8. Then there is 365 days in a year so you would multiply 8 times 365 which equals 2920.

Pretty sure this is right, hope it helps.

7 0

3 years ago