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Natalka [10]
3 years ago
5

What is the answer to 2/5 + 7/20 and 6/15 + 14/40

Mathematics
2 answers:
horrorfan [7]3 years ago
8 0
2/5+7/20=3/4

6/15+14/40=3/4
Cerrena [4.2K]3 years ago
4 0
2 times 5=10 7 times 20 is 140 6 times 15 is 90 and 14 times 40 is 560 and all the anwsers to that and that’s what you get
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If we toss 3 coins, what is the probability that no tails will appear?
docker41 [41]
You have 1/6 of a chance. 

-Dawn
3 0
3 years ago
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Three friends got jobs at stores in the mall. Nina earns $117.60 for hours 14 of work. Ty earns for $148.50 hours 18 of work. Ki
marysya [2.9K]

Answer:

Kim has the highest pay rate in dollars per hour

Step-by-step explanation:

we know that

To find out the unit pay rate divide the total earning by the total time

so

Nina earns $117.60 for hours 14 of work

\frac{117.60}{14}=\$8.4\ per\ hour

Ty earns for $148.50 hours 18 of work

\frac{148.50}{18}=\$8.25\ per\ hour

Kim earns for $137.60 hours 16 of work

\frac{137.60}{16}=\$8.60\ per\ hour

8.6 > 8.4 > 8.25

therefore

Kim has the highest pay rate in dollars per hour

6 0
3 years ago
Simplify square root of ten times square root of eight.
Romashka-Z-Leto [24]
<h2>Explanation:</h2><h2></h2>

Here we need to simplify the square root of ten times square root of eight, so let's write this step by step:

Step 1. The square root of ten

\sqrt{10}

Step 2. The  square root of eight

\sqrt{8}

Step 3. The square root of ten times square root of eight

\sqrt{10}\times \sqrt{8} \\ \\ \\ \text{From radical property:} \\ \\ \sqrt{a}\times \sqrt{b}=\sqrt{ab} \\ \\ \\ So: \\ \\ \sqrt{10}\times \sqrt{8}=\sqrt{80} \\ \\ \\ But: \\ \\ \sqrt{80}=\sqrt{16\time5}=\sqrt{16}\sqrt{5}=4\sqrt{5}

Finally, the correct option is:

<em>Four square root of five</em>

4 0
3 years ago
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Ron made 3 pitchers of lemonade to sell at a lemonade stand. The cost of making the lemonade is 50 cents per pitcher of lemonade
marishachu [46]

Answer:

$3.90

The cost of making them all is 1.50 subtracted from the profit he made

5 0
2 years ago
PLZZZ HELP MEEE
Lesechka [4]
Ok i will help you in this subject
3 0
3 years ago
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