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2 years ago

Emily and her dad share the cost of the meal in the ratio of 2:3. Emily's dad pays ?52.20. What is the total cost of the meal?

2 answers:

7 0

2/3 = x/52.20. set up these fractions and cross mutliple.

104.40 = 3x divide by 3

34.80 this equals Emily's portion to pay.

add 52.20 + 34.80 = 87.00 this is the total cost of the meal.

olganol [36]2 years ago

3 0

Answer:

The total cost of the meal was $87.

Step-by-step explanation:

Emily and her dad shared the cost of the meal in the ratio of 2:3

Let C be the total cost of the meal.

Now from the ratio given Emily dad's share will be = 3/5 of the total cost

= 3/5 × C

Since Emily's dad paid $52.20

Therefore 3/5 × C = 52.20

C = 52.20×5/3

C = 5 × 17.4 = $87

Therefore total cost of the meal was $87.

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Kyle works at a donut factory, where a 10-oz cup of coffee costs 95cents, a 14-oz cup costs $1.15, and a 20-oz cup costs

lianna [129]

Answer:

10Oz = 7 , 14Oz = 16, 20 OZ = 6

Step-by-step explanation:

There three equations that can be made here based on given data

Let number of 10 Oz cup be x

Let number of 14 Oz cup be y

Let number of 20 Oz cube be z

we can see that

x+y+z=29 ----- (i)

.95x + 1.15y + 1.5z = 34.05 ---- (ii)

10x+ 14y + 20z = 414 ---- (iiI)

We can solve these equations together to get the value of x and y and z (Done through calculator 3 variable equation function)

x= 7

y=16

z=6

5 0

2 years ago

A list has 10 numbers. Each number is a 1, 2, or 3. The average is 2 and the SD is 0. What is the list?

OLga [1]

Answer:

1, 1, 1, 2, 2, 2, 2, 3, 3, 3

Step-by-step explanation:

Since the standard deviation = 0

And the mean of the number = 2

If X is the sum of all the numbers, then

X/10 = 2

Cross multiply and make X the subject of formula

X = 2 × 10 = 20

The sum of the numbers will be 20

The number will be

1, 1, 1, 2, 2, 2, 2, 3, 3, 3

The sum of the above numbers is equal to 20 and the average value of the numbers is equal to 2.

7 0

2 years ago

What is the volume of the composite figure?

m_a_m_a [10]

We are asked to solve for the volume of the composite figures and the answer is the summation of the two volumes such as the volume of a triangular prism and volume of a rectangular prism. In order to solve this, we need to recall the following formulas:
the volume of triangular prism = 1/2* b*h*l and solving the volume, we have it:
the volume of triangular prism = 1/2 * 15* 16*20 = 3600 units³
the volume of rectangular prism = l*w*h and solving the volume, we have it:
the volume of rectangular prism = 20*15*12 = 2400 units³

The total volume of the composite figure is the summation of the two volumes such as:
total volume = 3600 + 2400
total volume = 6000 units²

The answer is 6,000 units².

5 0

2 years ago

Read 2 more answers

A scientist mixes x liters of water into a container that has 10 liters of a mixture that is 12% salt and 88% water. The functio

dsp73

Answer:

110 liters of water

Step-by-step explanation:

Let

x ----> liters of water

f(x) ----> the percent of the sat in the new mixture

we have