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Marizza181 [45]
2 years ago
13

Lena has 32 pens. of the pens are blue. How many blue pens does Lena have?

Mathematics
1 answer:
Novosadov [1.4K]2 years ago
7 0

you need more info to answer this question

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julia is putting together bag of 45 blocks. if she wants the probability of choosing a red block to be 1/5 how many red blocks j
4vir4ik [10]

Answer:

9

Step-by-step explanation:

Given that the sample size is 45 blocks

Let number of red blocks in the bag to be x

Then the probability of chosing a red block will be x/45

Given that the probability of choosing a red block is 1/5 then you can form the expression;

x/45 = 1/5 ---------------find the value of x  by performing cross multiplication

5x=45*1

5x/5=45/5

x=9

Answer

Julia put 9 red blocks in the bag.

7 0
3 years ago
TRUE OR FALSE:<br><br> 16 + 72n = (2 + 9n)(8)
scoray [572]

Answer:

true

Step-by-step explanation:

please see the image I attached of my work

3 0
3 years ago
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If the number in the numerator of a unit rate is one what does this indicate about the equivalent unit rate
OleMash [197]
I don't know if this helps but an equivalent rate is:Rates that represent the same comparison; for example 90km
                    2h         Fraction<------
and 45km/h Confusing i know
7 0
3 years ago
A rectangle has a height to width ratio of 3:4.5. Give two examples of dimensions for rectangles that could be scaled versions o
OlgaM077 [116]

We have been given that a rectangle has a height to width ratio of 3:4.5.

Let h be height and w be width of rectangle.

We can set our given information in an equation as:

\frac{h}{w} =\frac{3}{4.5}

h=\frac{3}{4.5} *w

Now we will substitute h=1 in this equation.

1=\frac{3}{4.5} *w

3w=4.5

w=\frac{4.5}{3} =1.5

We can see that width of rectangle is 1.5 times height of rectangle.

Our one set of dimensions of rectangle will be: height=1 and width=1.5.

We can get many set of dimensions for our rectangle by multiplying both height and width of rectangle by same number.

Multiplying by 5 we will get our dimensions as: height 5 and width 7.5.  

Therefore, (1 and 1.5) and (5 and 7.5) dimensions for rectangle will be scaled version of our rectangle.

6 0
2 years ago
Please help Find the area of the rectangle by multiplying its length and width.
Julli [10]

the answer is D. man

7 0
3 years ago
Read 2 more answers
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