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3 years ago

What is the unit rate of 1/7 and 1/21 ? this is very confusing?

Mathematics

1 answer:

Xelga [282]3 years ago

5 0

Answer:

the unit rate of 1/7 is itself (1/7), and for 1/21 is 1/21.

Step-by-step explanation:

this is because these rates/ratios are unit fractions. so if the numerater is 1, theres nothing you can do to simplify it.

you can check with the ceaser method as well, but you're still going to find the same solution.

plus, for example, if it takes 7 grams of sugar to make 1 cake, it wouldnt make sense for 1 gram of sugar to make 7 cakes.

hope this helped clear up your confusion <3

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PLEASE HELP ME ASAP Find the total surface area.

zimovet [89]

Answer:

$243.2cm^{2}$

Step-by-step explanation:

Step 1: Understand what this shape is constructed out of

2 Congruent Trapezoid

2 Congruent Rectangles

1 Small Rectangle

1 Large Rectangle

Step 2: Find the surface area of the shapes

Area of 2 Trapezoids = $(\frac{a+b}{2}h)2=(\frac{4+6}{2}2.8)2=(\frac{10}{2}2.8)2=((5)}(2.8))2= (11.6)(2)=23.2cm^{2}$

Area of 2 Rectangles = $(3)(10)(2)=(60)(2)=120cm^{2}$

Area of Smaller Rectangle = $(4)(10)=40cm^{2}$

Area of Larger Rectangle = $(6)(10)=60cm^{2}$

Step 3: Add the surface areas up

$23.2cm^{2} +120cm^{2} +40cm^{2} +60^{2} =243.2cm^{2}$

Therefore the surface area of the Trapezoidal Prism is $243.2cm^{2}$

8 0

4 years ago

Fran’s store spent $64,000 on expenses last year. Rent of the store was 35% of those expenses .How much did Fran spend on rent.

andrezito [222]

Answer:

$22400

Step-by-step explanation:

multiply 64000 with 0.35 (35%)

6 0

3 years ago

Amaya and bo each roll a fair, ordinary six-sided die with the numbers $1,2,3,4,5,6$ on the sides. what is the probability that

pashok25 [27]

On the added picture is given a table of all possible die rolls, for example, under a pair (2,3) you mean that Bo rolls 2 on a die and Amaya rolls 3.

All red shaded cells responds to those choices, when Amaya rolls more than Bo.

Let's count: all possible rolls make up 36 choices and red shaded rolls make up 15 choices, then the probabiliry is

$\dfrac{15}{36} = \dfrac{5}{12}$ .

Answer: $\dfrac{5}{12}$ .

4 0

3 years ago

3-2x>-5 what is the answer

yaroslaw [1]

Hi!

The answer to 3-2x>-5 is
x<4

Steps:
Step 1: Simplify both sides of the inequality.−2x+3>−5

Step 2: Subtract 3 from both sides.−2x+3−3>−5−3−2x>−8

Step 3: Divide both sides by -2.

Hope that helped!

5 0

3 years ago

Read 2 more answers

A contractor is building a new subdivision on the outside of a city. He has started work on the first street and is planning for

sergeinik [125]

Answer:

x + y = 6

Step-by-step explanation:

Standard Form:

y - y1 = m(x - x1)

In this question, the coordinate is (1, 5) with a slope of -1 (the slope is the same as street 1 since street 2 is going to be parallel.

Insert the coordinate and slope into standard form and you'll get this:

y - 5 = -1 ( x - 1 )

y - 5 = -x + 1

y = -x + 6

y + x = 6

hope this helps.

5 0

4 years ago