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sergeinik [125]
3 years ago
11

#3 please I don't understand

Mathematics
2 answers:
hjlf3 years ago
4 0
7/10 Is Like Dividing 7 By 10 Which (In Decimal Form) Is .70.

Times .7 By .75 Then Add That Result To 7.5
makkiz [27]3 years ago
3 0
Answer is A. 1 and 21/40
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The cost of 1 purse and 1 watch is £27.
EastWind [94]
1 purse and 1 watch is 27€
2 purse and 1 watch is 41€

So we can see the watch is constant means 1 watch is every time but purse is increase by 1 in the next expression

So 41-27 = 14€ is one purse
because the watch is every time one, so the next value increase is by purse

1purse and 1watch = 27
We know,
1 purse is 14€
So 27-14=13€ is one watch

We can check by
1 purse is 14 so two purse is 14*2=28
28+13=41
Which is same as they said in second expression

Hope it help you!¡

4 0
2 years ago
If Jasper installs a floor himself, it will take him 7 hours. Working with Yolanda, it will take them 3 hours.
Svetllana [295]

Answer: 5\frac{1}{4} hrs

<u>Explanation:</u>

Jasper: \frac{1}{7} per hr

Yolanda: \frac{1}{x} per hr

Together: \frac{1}{3} per hr

Jasper + Yolanda = Together

\frac{1}{7} + \frac{1}{x} = \frac{1}{3}

(21x)\frac{1}{7} + (21x)\frac{1}{x} = (21x)\frac{1}{3}

3x + 21 = 7x

        21 = 4x

        \frac{21}{4} = x

         5\frac{1}{4}

                                                                                               

7 0
3 years ago
Read 2 more answers
In a survey of 1200 teenagers, 48% said they are involved in an extracurricular activity. What is the margin of error for the su
nevsk [136]
The answer is 1200 teenagers
6 0
3 years ago
The side of cube is 3m 30cm long, find out its volume​
Anettt [7]
90 volume because 3 multiples by 30 = 90
7 0
2 years ago
PLZ HELP ITS DUE IN 28 MINUTES
Ilya [14]

Answer:

I think y and z = 45

4 0
2 years ago
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