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olga55 [171]
3 years ago
14

Which area model can u use to fine * find 39 x73

Mathematics
1 answer:
sweet [91]3 years ago
3 0
The area model you can use is D , cs 70 +3 & 30+9
You might be interested in
0.9(3÷2.25− 1/8 (1 2/3 1/9 ))− 4/7 ÷0.8. i would like to know what this equals if you could help that would be great.
mario62 [17]

Answer:

781/1680

Step-by-step explanation:

Don't you have a calculator?

I assume that by (1 2/3 1/9), you mean (1+2/3)*(1/9)

Assuming that you put all necessary parentheses:

781/1680, approx. 0.4648809523809524



7 0
4 years ago
How is dividing a whole number by a fraction different from dividing a fraction by a fraction ​
Vesna [10]

Answer:

Dividing a whole number by a fraction you would just multiply the bottom number of the fraction by the whole number.

Step-by-step explanation:

(here is how to divide a fraction by a whole number, if you need help on that also.)

1.  Turn the whole number into a fraction. ( ex: 2=2/1)

2. Multiply the fraction by the whole number fraction.

3. Multiply the tops together and the bottoms together

Dividing A Fraction By A Fraction

1.  Arrange the equation

2. Keep the first fraction

3. Change the sign

4.  flip the fraction

5.  Multiply the tops together and the bottoms together

4 0
3 years ago
-1= 5+X/6<br> The slash means 5+x OVER 6, as in it’s a fraction
Verizon [17]

Answer:

-11 =x

Step-by-step explanation:

-1 = (5+x) /6

multiply by 6

-6 = 5+x

-11= x

7 0
3 years ago
A rectangular storage container with an open top is to have a volume of 10 m3. The length of this base is twice the width. Mater
marshall27 [118]

Answer:

$ 327.08

Step-by-step explanation:

Let x = width of the container,

Then Length of the container = 2x

Let h = height of the container,

volume of the container can be calculated as length × width × height

= 2x × x × h

= 2x² h

Then we can say Volume =

= 2x² h=10

If we simplify inorder to get h

We have h= 5/x²

Then the area= (2L×h) +(2xh)

Where L is lenght

x= wish

h= height

= 2× 2x × h+ x× h

= 4x× 5/x + 2x × 5/x

Area = 30/x

Now, the area of the base = length × width

But from question, for the base costs $20 per square meter. Material for the sides costs $12 per square meter

Then the cost C(x)= 2x²× 20+30/x ×12

C(x)= 40x²+35/x²

If we differenciate wrt x we have

C(x)= 80-360/x²

If we equate C(x)=0the

80=360/x²

x= 1.651

If substitute to C(x)= 40x²+35/x²

C(x) = 40(1.651)² + 35/(1.651)²

We have cost= 327.08

6 0
3 years ago
A bag contains 4 blue and 5 red counters. Two counters are chosen at random without replacement. What is the probability that th
jeka94

Answer:

P(both are red) = 5/18

Step-by-step explanation:

total counters = 9

red counters = 5

P(both red) = P(R1) n P(R2)

5/9 * 4/8 =5/18

5/9 because the red counters are 5 and the total number of counters are 9.

I multiplied by 4/8 because, after selecting the first red counter without replacement, the remaining is 4 and the total decreases to 8.

6 0
3 years ago
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