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alexira [117]
3 years ago
9

billy invests £800 for 5 yerrs in a savings account. by the end of the 5 yers he has received a total of £96 siple interest.

Mathematics
1 answer:
Tresset [83]3 years ago
6 0

Answer:

i font knowwww

Step-by-step explanation:

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Ruth has a beaker containing a solution of 800 mL of acid and 200 mL of water. She thinks the solution is a little strong, so sh
Alexeev081 [22]

Answer:

Step-by-step explanation:

Ok so the beaker is 200 water:800 acid

So she drains 100 from the acid and 100 from the water which equals

100:700

Then she adds 200 water:

300:700

there is 300 mL water in da beaker now

i might got it wrong tho

5 0
3 years ago
the ratio of black bags to blue bags is 5 to 3. If there are a total of 185 black bags, then how many blue bags are there?
nlexa [21]

Answer:

There are 111 blue bags

Step-by-step explanation:

Let

x ----> the number of black bags

y ---> the number of blue bags

we know that

\frac{x}{y}=\frac{5}{3}

isolate the variable y

y=\frac{3}{5}x -----> equation A

x=185 ----> equation B

substitute equation B in equation A

y=\frac{3}{5}(185)

y=111

therefore

There are 111 blue bags

8 0
3 years ago
How is division related to subtraction?
Pachacha [2.7K]
Division is repeated subtraction, in the loosest sense.
8 0
3 years ago
Read 2 more answers
Find the perimeter of the parallelogram shown.<br> A) 36 cm<br> B) 40 cm<br> C) 46 cm<br> D) 54 cm
Lisa [10]

Answer:

46

Step-by-step explanation:

5 0
3 years ago
To play basketball with her friends, Evangeline needs to pump air in her ball, which is completely deflated. Before inflating it
Nadya [2.5K]

Answer:

ρ_air = 0.15544 kg/m^3

Step-by-step explanation:

Solution:-

- The deflated ball ( no air ) initially weighs:

                             m1 = 0.615 kg

- The air is pumped into the ball and weight again. The new reading of the ball's weight is:

                            m2 = 0.624 kg

- The amount of air ( mass of air ) pumped into the ball can be determined from simple arithmetic between inflated and deflated weights of the ball.

                           m_air = Δm = m2 - m1

                           m_air = 0.624 - 0.615

                           m_air = 0.009 kg

- We are to assume that the inflated ball takes a shape of a perfect sphere with radius r = 0.24 m. The volume of the inflated ( air filled ) ball can be determined using the volume of sphere formula:

                         V_air = 4*π*r^3 / 3

                         V_air = 4*π*0.24^3 / 3

                         V_air = 0.05790 m^3  

 

- The density of air ( ρ_air ) is the ratio of mass of air and the volume occupied by air. Expressed as follows:

                         ρ_air = m_air / V_air

                         ρ_air = 0.009 / 0.05790

Answer:            ρ_air = 0.15544 kg/m^3                      

4 0
3 years ago
Read 2 more answers
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