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3 years ago

What is the value of 7(23)? Use place value and the distributive property.

Mathematics

2 answers:

kkurt [141]3 years ago

6 0

Answer:

7(23) = 161

Step-by-step explanation:

Using the Distributive Property, you put the 7 into the number 23.

We have to think of place value as well. Since there is a parenthesis you have to add the 20 and 3 first.

7(23) = ?

This you are going to use the Distributive Property for.

7(23) = 161

Tcecarenko [31]3 years ago

5 0

Answer:

7 (23)=161

Step-by-step explanation:

you would add what's in the parentheses first (20+3). then you would multiply 23 by 7.

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Julio had $100 in account A on Sunday how much money does have in the account on Friday

yuradex [85]

Answer:

there is no way to solve it

Step-by-step explanation:

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4 0

2 years ago

Read 2 more answers

rock is thrown upward with a velocity of 27 meters per second from the top of a 23 meter high cliff and it misses the cliff on t

ahrayia [7]

the rock will be at 11 meters from the ground level after 5.92 seconds

Step-by-step explanation:

The motion of the rock is a free-fall motion, since the rock is acted upon the force of gravity only. Therefore, it is a uniformly accelerated motion, so its position at time t is given by the equation:

$y=h+ut+\frac{1}{2}at^2$

where

h = 23 m is the initial height

u = 27 m/s is the initial velocity, upward

$a=g=-9.8 m/s^2$ is the acceleration of gravity, downward

t is the time

We want to find the time t at which the position of the rock is

y = 11 m

Substituting and re-arranging the equation, we find

$11=23+27t-4.9t^2\\4.9t^2-27t-12=0$

This is a second-order equation, which has solutions:

$t=\frac{27\pm \sqrt{(-27)^2-4(4.9)(-12)}}{2(4.9)}=\frac{27\pm \sqrt{964.2}}{9.8}$

$t_1 = -0.41 s$

$t_2=5.92 s$

The first solution is negative so we neglect it: therefore, the rock will be at 11 meters from the ground level after 5.92 seconds.

Learn more about free fall:

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8 0

3 years ago

Positive fractions less than 1,with interval of 1/8 between each pair of fractions

Sati [7]

Yes it is keep up the good work

4 0

3 years ago

Convert these unlike fractions to equivalent like fractions and add them. You must use the LCD to get the answer correct. If pos

Gnoma [55]

The converted fractions are 3/12 and 5/12 and the sum is 2/3

<h3>How to convert the fractions?</h3>

From the question, the fractions are given as

1/4 and 5/12

The denominators of these fractions are

4 and 12

So. we start by calculating the LCD of the denominators

So, we have

4 = 2* 2

12 = 2 * 2 * 3

This gives

LCD = 2 * 2 * 3

Evaluate

LCD = 12

This means that the common denominator must be 12

So, we have

1/4 and 5/12

Multiply 1/4 by 3/3

This gives

3/12 and 5/12

When the fractions are added, we have

3/12 + 5/12 = (3 + 5)/12

Evaluate

3/12 + 5/12 = 8/12

Reduce fraction

3/12 + 5/12 = 2/3

Hence, the sum of the fractions is 2/3