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3 years ago

Estimate the product of 54 X 68.

Mathematics

2 answers:

Molodets [167]3 years ago

7 0

Answer:

54 X 68=3672

Step-by-step explanation:

Vinvika [58]3 years ago

6 0

Answer:

3,850 or 3,500

Step-by-step explanation:

Some people round things to like 50 * 70 while others do 55 * 70.

3,850 or 3,500

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Choose the two expressions that are equivalent to 6.5 ÷ 1.3.

kenny6666 [7]

Answer:

A & C

Step-by-step explanation:

To find the two expressions that are equivalent to 6.5 ÷ 1.3, you need to solve all of them until you get the two expressions that have a quotient of 5.

Let's begin solving!

65 ÷ 13 = 5

So now we know that A is one of our answers

65 ÷ 130 = 0.5

Not one of our answers because the quotient is not 5

650 ÷ 130 = 5

This is our other answer! We don't need to solve D because we only needed to find two expressions which are A and C.

Hope this helps you :)

8 0

3 years ago

Read 2 more answers

Factor the following trinomial. (Hint: Solve the equations first.)<br><br> x²-2x-2

Alex_Xolod [135]

Answer:

$(x-(1+\sqrt{3}))(x-(1-\sqrt{3}))$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2} -2x-2=0$

$a=1\\b=-2\\c=-2$

substitute in the formula

$x=\frac{-(-2)(+/-)\sqrt{-2^{2}-4(1)(-2)}} {2(1)}$

$x=\frac{2(+/-)\sqrt{12}} {2}$

$x=\frac{2(+/-)2\sqrt{3}} {2}$

$x_1=\frac{2(+)2\sqrt{3}} {2}=1+\sqrt{3}$

$x_2=\frac{2(-)2\sqrt{3}} {2}=1-\sqrt{3}$

therefore

$x^{2} -2x-2=(x-(1+\sqrt{3}))(x-(1-\sqrt{3}))$

5 0

3 years ago

Solve: 7x = 6x -9<br> plsss

Rzqust [24]

Answer:

x = -9

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Write the expression in simplest form

Semenov [28]

Answer:

$m^{\frac{3}{2} }$

Step-by-step explanation:

Using the rules of exponents

$a^{m}$ × $a^{n}$ = $a^{(m+n)}$ , $a^{0}$ = 1

m² × $m^{\frac{3}{2} }$ × $m^{-2}$

= $m^{(2-2)}$ × $m^{\frac{3}{2} }$

= $m^{0}$ × $m^{\frac{3}{2} }$

= 1 × $m^{\frac{3}{2} }$

= $m^{\frac{3}{2} }$

8 0

2 years ago

A group consisting of 10 children an adult went to a movie theater children tickets cost 5 each and adults tickets cost 8 each a

wlad13 [49]

9514 1404 393

Answer:

6 children

Step-by-step explanation:

If all of the group were adults, the total cost of tickets would be 8×$10 = $80. The actual cost was $80 -62 = $18 less than that. Since each children's ticket saves $3 off the cost of an adult ticket, there were $18/$3 = 6 children's tickets.

There were 6 children in the group.

_____

If you want an equation, you can let c represent the number of children. Then the cost of tickets is ...

8(10 -c) +5c = 62 . . . . 10-c is the number of adults

-3c = -18 . . . . . . . subtract 80

c = -18/-3 = 6 . . . divide by 3

3 0

3 years ago

Estimate the product of 54 X 68.​

Estimate the product of 54 X 68.