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3 years ago

Do all then, show your work also. If you're first comment and it's all right then you get the crown

Mathematics

1 answer:

dedylja [7]3 years ago

4 0

Answer:

Shown Below

Step-by-step explanation:

The Whole number can be put over one to make multiplying easier.

1- 4/5 times 20/1 = 80/5= 16

2- 5/10 times 19/1= 95/10= 9.5

3- 2/3 times 6/1= 12/3= 4

4- 5/10 times 8/1= 40/10= 4

5- 4/6 times 16/1= 64/6= 10 2/3

6- 4/10 times 4/1= 16/10= 1 3/5

7- 2/8 times 15/1= 30/8= 3.75

8- 4/5 time 2/1= 8/5= 1.6

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Sterling silver is an alloy of silver that is 92.5% pure silver. If x grams

nlexa [21]

Answer:

D. 0.925x + 0.88y = 0.91(x + y)

Step-by-step explanation:

The important point to remember is that the total mass of pure silver is the same on each side of the equation.

0.925x = mass of pure silver in first alloy

0.88 y = mass of pure silver in second alloy

The final alloy has a mass of (x + y) g and is 91 % pure silver, so

0.925x + 0.88y = 0.91(x + y)

5 0

3 years ago

Read 2 more answers

Please Help, Lots of points

Andrei [34K]

Answer:

9 cats

Step-by-step explanation:

x = cat

y = dog

Set up equations.

x + y = 30

4.5x + 8.5y = 219

Multiply first equation by 4.5 and subtract.

4.5x + 4.5y = 135

-(4.5x + 8.5y = 219)

-4y = -84

y = 21

Substitute this y value into the first equation

x + y = 30

x + 21 = 30

x = 9

3 0

2 years ago

PLEASE HELP ASAP QUESTIONS ARE IN PICTURE

ArbitrLikvidat [17]

Answer:

1. Last option

2. third option

Step-by-step explanation:

1. Each term is formed by multiplying the previous one by 3

so its 729, 2187

2. Working from right to left we multiply by 5 so its 500.

5 0

2 years ago

Help please just answer would be fine

scZoUnD [109]

The amount of water decreases $16\frac{1}{2}$ pints in 12 weeks.

Solution:

The amount of water decreases in 7 weeks = $9\frac{5}{8}$ pints

The amount of water decreases each week is same.

Let us first change the mixed fraction into improper fraction.

$9\frac{5}{8}$ pints = $\frac{(9\times8)+5}{8}$

$=\frac{77}{8}$ pints

The amount of water decreases in 1 week

$$=\frac{\frac{77}{8} }{7}$

$=\frac{77}{8\times7}$

$=\frac{11}{8}$

So, the amount of water decreases in 1 week is $\frac{11}{8}$ pints.

The amount of water decreases in 12 week

$=\frac{11}{8}\times12$

$=\frac{132}{8}$

$=16\frac{4}{8}$

$=16\frac{1}{2}$ pints

Hence the amount of water decreases $16\frac{1}{2}$ pints in 12 weeks.

4 0

3 years ago

Solve for h<br> Give an exact answer.<br> 3h=7( 2/7− 3/7 h)−10

romanna [79]

Its -4/3
Thank You.
Pls mark Brainliest!

6 0

2 years ago