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Usimov [2.4K]
3 years ago
11

What is the answer?I dont get it please help!

Mathematics
1 answer:
Temka [501]3 years ago
3 0
2(x-5) + 4x - 7 = 7
2x-10 + 4x -7 -7 =0
6x - 24 = 0
6x = 24
x= 24/6
x= 4

Micah's answer is incorrect because X=4
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Evaluate the expression 9P1
garri49 [273]

Answer :

9

Explanation :

The expression above signifies the Permutation expression

Permutation expression is given as nPr

The Permutation expression is calculated as:

nPr = P(n, r) = n! / (n - r)!

It the above question, we were asked to evaluate the expression 9P1

From the above question, we can see that:

n = 9 and r = 1

Therefore, the expression

9P1 = 9! / ( 9 - 1) !

9P1 = 9! / 8!

= 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 / 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1

= 362880 /40320

= 9

Therefore, the evaluation of the expression 9P1 = 9

4 0
3 years ago
Ill mark u brainliest if u get it right​
Naily [24]
560 + 20x = 700 so the blue one
4 0
3 years ago
Read 2 more answers
Which algebraic expression shows the average melting points of helium, hydrogen, and neon if h represents the melting point of h
Monica [59]
Given:
h = melting point of helium
j =  melting point of hydrogen
k = melting point of neon

Number of values = 3
Therefore, the average is
(Sum of values)/(Number of values) = (h+j+k)/3

Answer:
The average melting point of helium, hydrogen, and neon is
(h+j+k)/3
6 0
3 years ago
If you walked all three trails in one day, how far would you walk? Write the answer in meters and kilometers
nordsb [41]

Answer:

a. Central Park 2.542 km, Marine Park 1.28 km, Van Cortlandt Park 2.30 km

b. 6.122 km

Further explanation

Given:

Van Cortlandt Park’s walking trail is 1.02 km longer than Marine Park’s.

Central Park’s walking trail is 0.242 km longer than Van Cortlandt’s.

Question a. Fill in the missing information in the chart below.

Central Park ____ km

Marine Park 1.28 km

Van Cortlandt Park ____ km

Problem solving:

From the information above, only Marine Park's walking trail has known at 1.28 km.

Because Van Cortlandt Park’s walking trail is 1.02 km longer than Marine Park’s, then we must add the Marine Park's with 1.02 km to get the Van Cortlandt Park's.

Van Cortlandt Park's walking trail = 1.28 km + 1.02 km

Thus, Van Cortlandt Park's walking trail is 2.30 km.

Next, we find out walking Central Park.

Because Central Park’s walking trail is 0.242 km longer than Van Cortlandt’s, then we must add the Van Cortlandt’s with 0.242 km to get the Central Park's.

Central Park's walking trail = 2.30 km + 0.242 km

Thus, Central Park's walking trail is 2.542 km.

Question b. If a tourist walked all 3 trails in a day, how many kilometers would he or she have walked?

Problem solving:

We have to add up the entire walking trail.

Central Park 2.542 km

Marine Park 1.28 km

Van Cortlandt Park 2.30 km

2.542 km + 1.28 km + 2.30 km = 6.122 km

If a tourist walked all 3 trails in a day, he or she would travel a distance of 6.122 km.

Learn more

The unit conversion brainly.com/question/5416146  

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Keywords: Van Cortlandt Park’s walking trail, 1.02 km, longer than Marine Park’s, Central Park’s, 0.242 km, fill in the missing information, in the chart below, a tourist walked all 3 trails in a day, how many kilometers

3 0
3 years ago
Please help! Algebra! See attached image.
gogolik [260]

Answer:

The correct answer is A. T(c) = (c + 160)/4

Step-by-step explanation:

To solve this, we need to start by using c as a standard term instead of in terms of t. Then we simply solve for t.

C = 4t - 160 ----> Add 160

C + 160 = 4t ----> Divide by 4

(C + 160)/4 = t

7 0
3 years ago
Read 2 more answers
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