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2 years ago

(9 + 3) x 8 = 19 x 8) + (3 *__)

Mathematics

2 answers:

Taya2010 [7]2 years ago

8 0

Answer:

x = 8

Step-by-step explanation:

(9 + 3) x 8 = (9 x 8) + (3 x x)

(9 + 3) x 8 = (9 x 8) + (3 x 8) = True

Molodets [167]2 years ago

5 0

Answer:

HOPE IT HELPS

Step-by-step explanation:

(9 + 3) x 8 = (9 x 8) + (3 × 8)

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If a =6, what is the value of 2a(3b + 5c)?

leva [86]

Answer:

Step-by-step explanation:

Put a = 6 to the expression 2a(3b + 5c):

(2)(6)(3b + 5c) = 12(3b + 5c) use the distributive property

= (12)(3b) + (12)(5c) = 36b + 60c

7 0

3 years ago

A different map has a scale of 1:50000

Deffense [45]

Answer:

8 Km

Step-by-step explanation:

16 x 50000 = 800,000 cm

800,000 cm = 8,000 m

8,000 m = 8 km

I hope this helps, if not sorry

6 0

3 years ago

What is the remainder of 7964 divided by 8

pishuonlain [190]

Exact Form: 1991/2

Decimal Form: 995.5

Mixed Number Form: 995 1/2

6 0

3 years ago

5 cm Find the total surface area of the cylinder. 10 cm

tatiyna

Answer: Area of a right circular Cylinder--- curved surface area -2πrh Total surface area -2πr(r+h),where 'r' is the radius of the circular surface and 'h' is the height of the cylinder.

3 0

3 years ago

Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S

mote1985 [20]

Answer:

Silver

Step-by-step explanation:

Find the volume of the coin

Volume of a cylinder

$\textsf{V}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

Given:

r = 1.5 cm
h = 0.25 cm

Substituting given values into the formula to find the volume:

$\sf \implies V=\pi (1.5)^2(0.25)$

$\sf \implies V=0.5625 \pi \:cm^3$

Find the density of the coin given it has a measured mass of 18.54 g

Density formula

$\sf \rho=\dfrac{m}{V}$

where:

$\rho$ = density
m = mass
V = volume

Given:

m = 18.54 g
$\sf V=0.5625 \pi \:cm^3$

Substituting given values into the density formula:

$\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}$

$\implies \sf \rho=10.49149385\:g\:cm^{-3}$

Given:

$\textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}$

$\textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}$

Therefore, as $\sf \rho=10.49\:g\:cm^{-3}$ the coin is made from silver.

4 0

2 years ago