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slava [35]
3 years ago
12

Marge is twice as old as Consuelo. The sum of their ages seven years ago was 13. How old are they now?

Mathematics
2 answers:
Trava [24]3 years ago
7 0
Merge is 18.
Conseulo is 9
LiRa [457]3 years ago
4 0
Marge is 18 and Consuelo is 9

This is because you can add 14 to the sum of their ages 7yrs ago to find out the sum of their ages now. This is 27.
18 + 9 = 27 (9 x 2 = 18) (this is now)
And to double check : (7yrs ago)
18 - 7 = 11 9 - 7 = 2
11 + 2 = 13
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a rectangular sheet is 62cm long and 42cm wide from each of its corners a square of side 6cm is cut out and an open box is made
Alla [95]

Answer:

The volume of rectangular box is 9,000 cubic centimeters

Step-by-step explanation:

Given as :

The length of the rectangular sheet = L = 62 cm

The width of the rectangular sheet = B = 42 cm

Let The volume of rectangular box = v cubic centimeters

From each corner of sheet a square of 6 cm is cut out and an open box made

So, The length of box = L' = (L - 6 - 6)

i.e L' = (62 - 6 - 6)

Or, L' = 50 cm

Or, Length of the box = 50 cm

And The width of the box = B' = (B - 6 - 6)

i.e B' = (42 - 6 - 6)

Or, B' = 30 cm

Or width of the box = 30 cm

And,

The height of the box = H = 6 cm

∴ volume of rectangular box = Length of box × Breadth of box × Height of  box

i.e v = L' × B' × H

Or, v = 50 cm × 30 cm × 6 cm

Or, v = 9,000 cm³

So, The volume of rectangular box = v = 9,000 cm³

Hence, The volume of rectangular box is 9,000 cubic centimeters Answer

4 0
3 years ago
Radio tower had a special on rechargeable batteries. It sold AA for $1 and AAA for $0.75. It sold 42 batteries on a single day a
PIT_PIT [208]
AA = $1
AAA= $0.75

AA + AAA = 42

$1AA + $0.75AAA= $37

AA + AAA = 42
AA + AAA-AAA= 42- AAA
AA = 42- AAA

$1(42- AAA) + $0.75AAA= $37
$42 - AAA +0.75AAA = $37
$42 -0.25AAA= $37
$42-$42 -0.25AAA= $37 -$42
-0.25AAA= -5
-0.25AAA/-0.25 = -5/-0.25
AAA= 20

AA + AAA= 42
AA + 20 = 42
AA +20 -20 = 42-20
AA= 22

Check
$1AA + $0.75AAA= $37
$1(22)+ $0.75(20)= $37
$22 + $15 =$37
$37 = $37


5 0
4 years ago
federico ha tomado 2/5 de vaso de leche y maria ,4/10de vaso ¿alguno de los dos ha bebido mas leche o han bebido la misma cantid
umka2103 [35]

Answer:

Han bebido la misma cantidad.

Step-by-step explanation:

De la pregunta,

Frederico = 2/5 vaso de leche

María = 4/10 vaso de leche

Simplificando el gozo de la leche para María

= 2/5

Por tanto, podemos decir que:

Sí, han bebido la misma cantidad.

5 0
3 years ago
What is the probability of flipping exactly 6 heads when you flip 6 coins? Please explain your answer and those who waste an ans
kolbaska11 [484]

Binomial probability states that the probability of x successes on n repeated trials in an experiment which has two possible outcomes can be obtained by

(nCx).(p^x)⋅((1−p)^(n−x))

Where success on an individual trial is represented by p.

In the given question, obtaining heads in a trial is the success whose probability is 1/2.

Probability of 6 heads with 6 trials = (6C6).((1/2)^6).((1/2)^(6–6))

= 1/(2^6)

= 1/64

6 0
3 years ago
One step equations: integers <br> 3x=36
Scorpion4ik [409]

Answer:

12

Step-by-step explanation:

3 times 12 is 36

7 0
3 years ago
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