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3 years ago

8

‼️WILL LIST BRAINLIEST ‼️Racheal drank 215 of a pitcher of lemonade. Kurstyn drank 1/4 of the lemonade. What fraction of the lem

onade did they drink together? A) 1/10 B) 1/3 C) 7/20 D) 13/20

1 answer:

Snezhnost [94]3 years ago

8 0

Answer: the answer is D

Step-by-step explanation:

To find the answer you have to change both of the denominators to be the same and then you can add across

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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

<u>Volume of a cylinder</u>

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

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

<u>Density formula</u>

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

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

1 year ago

Bond [772]

Answer:

$\sin A =\frac{4}{5}$

Step-by-step explanation:

Recall the mnemonics SOH CAH TOA.

SOH means the Sine ratio is Opposite over Hypotenuse.

This implies that;

$\sin A =\frac{Opposite}{Hypotenuse}$

The side opposite to angle A is 4cm and the hypotenuse is 5cm.

$\therefore \sin A =\frac{4}{5}$

6 0

2 years ago

To graph the inequality -4 ≥ w , you would put a closed circle on -4 and shade to the right.

madam [21]

True because you do not include the number if the circle was open.

4 0

3 years ago

Read 2 more answers

Which translation maps the graph of the function f(x)=x2 onto the function g(x)= -8x+x2+7

marysya [2.9K]

Answer: Left 1 unit, up 5 units

6 0

3 years ago

HELP FAST NOT SURE WHAT TO DO

meriva

Answer: It’d be C. 1462

Step-by-step explanation: When rounded it is 1500 Kilograms. The 6 in the tens place round the 4 to a 5. So it is 1500 Kg. Hope this helped. :P

3 0

2 years ago