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dolphi86 [110]
2 years ago
10

Bob and rob in ratio 3:4 and their age 4 years ago was 5:7 find their ages

Mathematics
1 answer:
Trava [24]2 years ago
6 0

Answer:

Present Day:

Bob:Rob:Difference

 3   :  4  :        1

 6   : 12  :       2

4 years ago:

Bob:Rob:Difference

    5 : 7 : 2

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Elise and her younger brother, Reid, take turns loading the dishwasher after dinner. Because she is older, Elise loads the dishw
erik [133]

Answer:

<h2>48</h2>

Step-by-step explanation:

so  for every 3 Reid washes there are 4 Elsie washes

the ratio of washing is 3:4

lets add 3 and 4 up

3 + 4 = 7

now lets divide the total number of washes by the added ratio

84/ 7

=12

now we know that 1 part is 12

to find Elsie's part we need to x 12 by how many parts she has got

she washed 4 times

4 x 12

=48

5 0
2 years ago
A triangular prism is 18 centimeters long and has a triangular face with a base of 12 centimeters and a height of 8 centimeters.
levacccp [35]

Answer:

672 sq cm

Step-by-step explanation:

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One of the sides is 12 x 18 = 216

The other 2 sides are 10 x 18 = 180 x 2 = 360

Add them all together to get 672 sq cm

8 0
2 years ago
A number that has a digit in the tenths place,hundredths place,or beyond
nadya68 [22]
A number that has a digit in the tenths place, hundredths place or beyond is called decimal numbers. Any number after the decimal point is called decimal number, it value always started in tenths place value, then followed by hundredths, then thousandths, then ten thousandths, then hundred thousandths and so on. It is still the same with giving place value in whole number. The only difference is, its value decreases as it becomes away from the decimal point.
4 0
3 years ago
What is the value of this expression?<br> 2.3·23.623
lora16 [44]

Answer:

54.3329

Step-by-step explanation:

calculator said so lol

4 0
2 years ago
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olga nikolaevna [1]

Answer:

sin 0

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will provide a value of 0

8 0
3 years ago
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