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3 years ago

What is the answer to the equation x+y=36 and 6.99x+10.99=331.64

Mathematics

1 answer:

HACTEHA [7]3 years ago

8 0

Answer:its 5 + 6 = (7+8)

Step-by-step explanation:

thats the answer

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Alexis bought a pyramid-like paperweight for her teacher. The paperweight has a volume of 200 cm3 and a density of 1.5 grams per

Nikolay [14]

Answer:

The density is equal to the weight divided by the volume:

$\rho=\dfrac{W}{V}$

The paperweight weights 300 grams.

Step-by-step explanation:

The density of the paperweight can be calculated knowing the weight and the volume of this paperweight.

The density is equal to the weight divided by the volume:

$\rho=\dfrac{W}{V}$

We know that the density of this paperweight is 1.5 grams per cm3, and its volume is 200 cm3.

We can use the formula of the density to calculate the weight:

$\rho=\dfrac{W}{V}\\\\\\W=\rho\cdot V=1.5\;\dfrac{g}{cm^3}\,\cdot\;200\; cm^3\\\\\\W=300\;g$

The paperweight weights 300 grams.

7 0

3 years ago

Find the surface area of the pyramid round to the nearest tenth choose the correct unit

sineoko [7]

slant height(h) = 16.3ft

Base side = 20ft

$\text{Area of pyramid=}\frac{1}{2\text{ }}\times perimeterofbase\text{ x slant height}$

Perimeter of base = 4(base side) = 4(20) = 80ft

$\begin{gathered} \text{Area of pyramid = }\frac{1}{2}\times80\times16.3 \\ \text{Area = }652ft^2 \end{gathered}$

7 0

1 year ago

For the figures shown, HJKL ~ QRST, and the scale factor of HJKL to QRST is 9/7.

ch4aika [34]

Hey there! :)

JK ≈ RS

Scale Factor = 9/7

JK = 56

56 · 9 = 504 = 72
1 7 = 7

Your answer ⇒ B.72

Hope this helps :)

4 0

3 years ago

130.95 rounded to the nearest 10th

olya-2409 [2.1K]

130.95 rounded to the nearest tenths place is 131.0
A five or above means you round up.

7 0

4 years ago

WILL MARK BRAINLIEST A stamp collector bought 7 rare stamps for her collection. Each stamp cost $1,953. How much did the collect

IceJOKER [234]

Answer:

$13,671

Step-by-step explanation:

Each stamp cost $1,953, and the collector bought 7 of them.

1953 * 7 = 13671

The collector spent $13,671 on the stamps.

8 0

3 years ago