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Temka [501]
2 years ago
13

Please help me with this equation, you are supposed to find x

Mathematics
2 answers:
agasfer [191]2 years ago
7 0

this is my answer x= -7

Lena [83]2 years ago
5 0

Answer:

Step-by-step explanation:

\frac{3}{4}(x+21) =10\frac{1}{2} \\x+21=14\\x=-7

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A rectangle is 5cm longer that it is broad. It perimeter is 26cm. Find the length and breadth of the rectangle
Maslowich
I hope this helps you


length w+5


width w


26=2 (w+5+w)


13=2w+5


2w=8


w=4


length =4+5=9
3 0
3 years ago
4. La figura se muestra un armazón arqueado de 50 metros de longitud con las alturas indicadas. Los "tirantes" verticales están
tatiyna

Step-by-step explanation:

verticales están a 12 metros uno del otro. Si tanto la parte superior como la inferior del arco son arcos de parábola, redondeo hasta el metro más cercano la suma de longitudes de los tirantes verticales e inclinados.

4 0
3 years ago
The lateral area of a cone is 400 pi cm^2. The radius is 10 cm. Find the slant height to the nearest tenth.
natka813 [3]

ANSWER

The slant height is 40cm.

EXPLANATION

The lateral area of a cone is given by:

Area= \pi \: r \: l

where r=10cm is the radius of the circle and l is the slant height.

It was also given that, the lateral area is 400π cm²

We substitute the values to get,

400\pi = \pi  \times \: 10 \times  \: l

We now divide both sides by 10π.

This implies that,

\frac{400 \pi}{10\pi}  = l

40 = l

Hence the slant height is 40cm.

8 0
3 years ago
There are 32 pupils in a class. 20 of them are girls. What is the ratio of boys to girls in it’s simplest form
Ray Of Light [21]

Hello!

If there are 32 people in total in the class, and 20 of them are girls, that means there are 12 boys in the class

so the ratio of boys to girls is 12:20

to get simplest form, divide by the greatest common factor. which in this case, is 4.

12 / 4 = 3

20 / 4 = 5

your final answer is: boys:girls, 3:5

I hope this helps, and have a nice day!

7 0
2 years ago
The total square footage of wall space to be painted is 300 square feet. If a gallon of paint covers 240 square feet, how many q
UNO [17]

Answer:

You will need 5 quarts of paint to cover 300 square paint

Step-by-step explanation:

7 0
3 years ago
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