Mathematics Middle School

Use ‘If and Then’ and Cross-Multiplying to solve the following.

Jasmine bought 32 kiwi fruit for $16. How many kiwi can Lisa buy if she has $4?
If you can buy four bulbs of elephant garlic for $8 then how many can you buy with $32?

One bunch of seedless black grapes costs $2. How many bunches can you buy for $20?

The money used in Jordan is called the Dinar. The exchange rate is $3 to 2 Dinars. Find how many dollars you would receive if you exchanged 22 Dinars.

It takes 20 m of cloth and 50 m of ribbon to make a small tablecloth. If a large tablecloth takes 30 m of cloth, how much ribbon do you need?

(sorry if its a lot)

Answers

Answer 1

Answer:

Step-by-step explanation:

32:16=x:4

cross multiply

128:16x

x=8 kiwis

4:8=x:32 if in the first problem we see 8:4=32:16 then x=16 bulbs.

1:2=x:20

cross multiply

20=2x

x=10 bunch of seeded black grapes

3:2=x:22

cross multiply

66=2x

x=33 dollars

20:50=30:x

cross multiply

20x=150

x=7.5 meters of ribbon

Related Questions

Need answer asap will give brainly if it's right

Answers

Answer:

It is not possible to form a polygon with side lengths of 6cm, 2cm, and 7cm. In order for a polygon to be possible, the sum of the interior angles must be less than 180 degrees. To form a polygon with 3 sides (triangle), the sum of the interior angles must be 180 degrees. But the sum of these side lengths does not add up to 180 degrees, therefore it's not possible to form a polygon with these side lengths.

helppppppppppppppppppppppp

Answers

Answer:

Step-by-step explanation:

The answer should be number three, this is because there is a dot located on number 10, that means he studied for one hour longer.

Please help me solve this.

Answers

It's C! Sorry if that answer is wrong tho have a good day

Please answer this question I will give you brainlest
Doug builds a skateboard ramp.The base is 6 feet long and the height is 1.5 feet.What is the slope of the ramp?Explain

Answers

Answer: The slope of the ramp is 0.25

Step-by-step explanation: The slope of a ramp is a measure of how steep it is. It is typically expressed as a ratio of the height to the length, also known as the rise over the run. To calculate the slope of the ramp, you can divide the height by the length.

In this case, the ramp is 6 feet long and 1.5 feet high, so the slope is:

1.5 feet / 6 feet = 0.25

So the slope of the ramp is 0.25, which can also be written as a fraction 1/4 or 25%. This means that for every four feet of horizontal distance, the ramp rises by one foot.

Alternatively, you can think of this as the angle of the ramp, if the angle formed by the ramp is small it will have a small slope and if the angle formed is large, it will have a large slope.

In simpler terms, the slope represents how steep the ramp is. The higher the slope, the steeper the ramp will be. And the lower the slope, the gentler the ramp will be. In this case, since the slope is 0.25 it is a gentle ramp.

Answer:

0.25

Step-by-step explanation:

I had this before I got it wrong but then my teacher gave me the answer

On the windowsill is a plant that is 8 inches tall. It is growing 2 inches per week. A second plant, which is 3 inches tall, is on the coffee table. It is growing 4 inches per week. Eventually the two plants will be the same height. How tall will the plants be?

Answers

Answer:

Let's call the height of the first plant as x and the height of the second plant as y.

We know that the first plant is 8 inches tall and growing 2 inches per week, so we can write the equation:

x = 8 + 2t (where t is the time in weeks)

We know that the second plant is 3 inches tall and growing 4 inches per week, so we can write the equation:

y = 3 + 4t

We also know that the two plants will be the same height when they meet, so we can set the two equations equal to each other:

x = y

8 + 2t = 3 + 4t

5 = 2t

t = 2.5

So the plants will be the same height in 2.5 weeks. To find out how tall they will be, we can plug this value of t back into either equation:

x = 8 + 2(2.5) = 8 + 5 = 13 inches

y = 3 + 4(2.5) = 3 + 10 = 13 inches

So both plants will be 13 inches tall when they reach the same height.

If I helped you, could you please make my answer as best?

an alligator named Camila Arguello was 32 inches long in 2022, she was measured now in 2023, she is now 38 inches long, find the percent increase and percent CHANGE.

Answers

Answer:

Step-by-step explanation:

38-32=6

1%= 1/100    

32/100+ 38/100

changed by 6%

What's the value of x

Answers

Answer:

71

Step-by-step explanation:

180-109=71

Answer:

Step-by-step explanation:

What's the answer to a =

Answers

Answer:

a = 49

Step-by-step explanation:

131 + a = 180

a = 49

a=49

180-131=49

131+a (49)= 180

PLEASE WITH DECIMALS What is this number in standard form?

(8×100)+(4×1)+(6×1100)+(3×11,000)

Enter your answer in the box.

Answers

Answer:

40,404

have a good day!

40,404

Hope this helps

Find the surface area of the prism.

Answers

Answer:

Step-by-step explanation:

write -90 7/50 as a decimal number.

Answers

Answer: convert -90 7/50 to a fraction therefor the answer is -90.14

i’m pretty sure it would end up being -90.14

Can anybody answer both of these questions for me? (100 points)

Answers

Answer:d

Step-by-step explanation:

its steo by step answer: d

Find the slope of the line passing through the points (-3,1) and (-3,-6).

Answers

The slope of the line is undefined

Answer:

undefined

Step-by-step explanation:

Eve wrote a total of 24 pages over 8 hours. How many hours will Eve have to spend writing this week in order to have written a total of 33 pages? Solve using unit rates.

hours:

Answers

Answer: 11 hours

Explanation: do 24/8 and you’ll get the unit rate which is 3 then do 33/3 and you’ll get your answer 11 hours
Answer 11 hours


Explanation……………

evaluate the expressions

1. 3(8) - 15

2. 4(2+3) - 12

3. 4(12)+11

4. 9(14-5) - 42

5. 3(7) - 4(2)

6. 7(8) - 5(8)

Answers

It is 20 for that one answer
1. 9
2. 8
3. 59
4. 39
5. 13
6. 16

Answer the question below:

Answers

Answer: In sure they do!

Step-by-step explanation:

t's possible that the circle's diameter and circumference are the same as 7.2 inches and 28 inches. To answer the question, I'm going to use the formula C. Equals pi times D. It's Mhm. It's not possible for a circle with a diameter of 7.2 in to be the same as a circle with a 22.62 in pi. You end up with a smaller circumference when you plug 7.2 into the formula for circumference.

an alligator was 32 inches long in 2022, she was measured again in 2023, she now is 38 inches long, what was the percent change?

Answers

6 Percent because 32+6=38
(V2−V1)/|V1|×100
=(38−32)/|32|×100
=6/32×100
=0.1875×100

=18.75%change
=18.75%increase

Can anyone help, would like a explaination with it to

Answers

Answer:B) 90 g/cm3

Step-by-step explanation:

Density= mass/volume

m=450g

v=5cm3

therefore density=450/5

                            =90 g/cm3

Can someone pls explain to me

Answers

Answer:

272.5

Step-by-step explanation:

dotted line of the circle = 12 because this whole thing is a parallelogram + half a circle.  so diameter for the 1/2 circle is 12

so that means radius = 6, which is 1/2 of the diameter

circle area = π*r² = 36π

1/2 of it = 18π = 56.5

parallelogram area = base * height = 24 *9 =216

total  216+56.5

can someone help me with this question?? its due midnight so if u see this after midnight u dont need to answer

Answers

FShe is a workerhefgkutfytvvhgvehgvxhhgvaghecCqe

Tire King is having a sale where customers can buy 4
4
new tires for $319.96
$
319.96
.

What is the unit price of the tires?

Answers

Answer:

79.99

Step-by-step explanation:

You divided 319.96 by 4 which gives you 79.99

Answer:

$ 79.99

Step-by-step explanation:

4 tires = $319.96

1 tire =$b

cross multiplying,

4× b = 1 × 319.96

→ 4b = 319.96

→ b = 319.96 ÷ 4

therefore b = $79.99

A school wants to sell 300 sweatshirts for a fundraiser. All sweatshirts have the same price, and they want to make a total of $11,778.00 in sales.

Answers

They will be priced at $39.26
The total would be $39.26

Creative crafts gives scrapbooking lessons for $15 dollars per hour plus a $10 supply charge. Scrapbooks incorporated gives lessons for $20 dollarts with no aditional charges. Write and solve a system of equations that represent the situation. Interpret the solution.

NEED ANSWER NOW PLEASE

Answers

Answer:12

Step-by-step explanation:15$/10 times 20$=120/10=12$

The system of equations is:
y=15x+10
y=20x
x= 2
y= 40
(Y equals the total amount of money and x equals the number of dollars per hour)

3.9y + 3 - 2.9y=

anybody know?!

Answers

Answer:

= y + 3

Step-by-step explanation:

Group:

= 3.9y - 2.9y + 3

Add elements together:

= y + 3

3.9y + 3 - 2.9y

Arrange equation so that like terms are next to each other

3.9y - 2.9y + 3

Subtract.

1y + 3

Since 1y and 3 are not like terms, we cannot add them.

Therefore, 1y + 3 is the answer.
You can also write y +3.

please help ya girl out!!

Answers

Answer:

Does this help

Step-by-step explanation:

i tried lol

The answer is x=b+_ 24[8263]737

Find the slope of the line passing through the points (9,-8) and (9,8).

Answers

It’s undefined. The line would be vertical meaning it’s undefined

Answer:

The answer would be undefined. if you were to do the work, it is a vertical line meaning it's undefined

Step-by-step explanation:

Help me with this pls

Answers

Answer:

The relationship between angle 1 and angle 2 is that they both have the same value and are congruent angles. Because angle 1 is 108 degrees, angle 2 is also 108 degrees.

they’re both congruent and both 108 degrees

Which expression is equivalent to twice b plus the sum of 2 and b?

Answers

2+3b is your answer! Hope it helps!


2 + 3b is the correct answer

I need help solving this (middle school)

Answers

Answer: 14094.08

Step-by-step explanation:

Steps and explanation in pic attached

Answer = 4975.52 m2
- my apologies if any mistakes were made but mine’s quite different from the previous given answer as I used 22m as radius while they used 44m as radius which is in fact the diameter.

help me please! this is due today!

Answers

RS= 23


2( 5y-2) + 2(4y+1) =124

Divide both sides with 2

5y - 2 + 4y + 1 = 62

9y - 1 = 62

9y = 63

y = 7

Plug in y for the equation of RS.

RS = 5y - 2
RS = 5(7) - 2
RS= 25-2

RS= 23
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