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Rudiy27
2 years ago
13

Luciano can type 190 words in 5 minutes. Which of the following ratios are in a proportional relationship with Luciano's typing

speed?
Select all that apply.


38/1

74/2

230/45

290/105

570/15

950/25
Mathematics
1 answer:
mina [271]2 years ago
5 0

Answer:

  • 38/1
  • 570/15
  • 950/25

Step-by-step explanation:

The given rate, in words per minute, is ...

  (190 words)/(5 min) = 38 words/min

The offered ratios are ...

  38/1 = 38 . . . . proportional

  74/2 = 37 . . . . NOT proportional

  230/45 ≈ 5.11 . . . NOT proportional

  290/105 ≈ 2.76 . . . NOT proportional

  570/15 = 38 . . . . proportional

  950/25 = 38 . . . . proportional

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Priya is hosting a poetry club meeting this week and plans to have fruit punch and cheese for the meeting. She is preparing 8 ou
Sveta_85 [38]

Answer:

b= $3.99×2 + $2.50= $10.48

Step-by-step explanation:

We have the following unknowns:

p: number of people in the club

f: ounces of fruit punch

c: ounces of cheese

b: budget in dollars

We know that

p=12

Priya is preparing 8 ounces of fruit punch per person, so:

f= 8×p = 8×12 = 96

We need 96 ounces of fruit punch

Priya is preparing 2 ounces of cheese per person, so:

c= 2×p = 2×12 = 24

We need 24 ounces of cheese

A package of cheese contains 16 ounces and costs $3.99. In order to get all the cheese we need, Priya have to buy 2 packages of cheese.

2×16=32

32>24

A one-gallon jug of fruit punch contains 128 ounces and costs $2.50. Then, Priya have to buy only one gallon jug.

128>96

The budget would be:

b= $3.99×2 + $2.50×1

3 0
3 years ago
A substance has a density of 0.70 g/mL, if it has a volume of 3.0 mL, what is its mass?
Naddika [18.5K]

Answer:

<h2>2.1 g</h2>

Step-by-step explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 0.70 × 3

We have the final answer as

<h3>2.1 g</h3>

Hope this helps you

4 0
3 years ago
Which ordered pair is a solution to the equation 2x - 4y = 18?
weqwewe [10]
(11,1) because if you plug in x and y this answer is the only one that gives you 18 in the end
5 0
3 years ago
Read 2 more answers
Please help?i really need help with this.
Dafna1 [17]

every similar line means that they have the same value

x=8

y=10

go look for a way to find the last side in the small rectangle that has x and y




4 0
3 years ago
Which Interval describes where the graph of the function is negative?
andrezito [222]
I believe that it’s the first one
6 0
3 years ago
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