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Charra [1.4K]
3 years ago
8

Which expression represents the sum of 21 and an unknown number?

Mathematics
2 answers:
Inessa05 [86]3 years ago
3 0
B. The variable d represents an unknown number. So, 21+d, is equal to 21+an unknown number.
Licemer1 [7]3 years ago
3 0
The answer is B because it says sum. sum means addition.


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Which equation represents a line that is parallel to the line y = - 4x +5?
Vikentia [17]
Y= -4x+3

slope is still the same so it would be parallel to that line. Only the y-intercept is different so it would just pass through a different point
6 0
3 years ago
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A train stops at Atlanta, then at Bayville, and then at Colleyville. The
Nezavi [6.7K]

Answer:

See Explanation

Step-by-step explanation:

<em>The question is incomplete as what is required of the question is not stated.</em>

<em>However, since the question is only limited to distance, a likely question could be to calculate the distance from Bayville to Colleyville.</em>

Represent the distance from Atlanta to Colleyville with AC

Represent the distance from Atlanta to Bayville with AB

Represent the distance from Bayville to Colleyville with BC

So, we have that:

AC = 25.5\ miles

AB = 10\frac{2}{3}\ miles

The relationship between AB, AC and BC is:

AC = AB + BC

Make BC the subject of formula:

BC = AC - AB

BC = 25.5 - 10\frac{2}{3}

Convert fraction to decimal

BC = 25.5 - 10.7

BC = 14.8

<em>Hence, the distance from Bayville to Colleyville is 14.8 miles</em>

3 0
3 years ago
John’s weight loss for each week of the month is 5lbs. , 2.5lbs, and 2.5 lbs. He gained 3.5 lbs the last week. If John originall
KengaRu [80]

weight loss is negative weight gain is positive

198 -5 -2.5 -2.5+3.5 = 191.5 lbs

5 0
3 years ago
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Will someone please answer (ALL) the questions that’s are highlighted? Except for 14 &amp; 16..
Zolol [24]
Hello!

2.
To find the area of a kite we use the equation\frac{pq}{2}

p is the line in the kite that goes from top to bottom 
q is the line in the kite that goes from left to right

put in the values

\frac{10 * 11}{2}

Multiply

\frac{110}{2}

Divide

55

The answer is 55
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4.

I believe the answer is 770 yds squared
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6.

The ratio is 12:7
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8.

I do not know how to do 8 sorry
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10.
I can't see the whole picture put I will do my best

Since the angle inside the circle is 50° the side is also 50°
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12.
I do not know how to do 12 sorry

Hope this helps!
7 0
4 years ago
Is h(x)=x+2 linear or nonlinear?
ANTONII [103]

the answer to your question is linear I think

4 0
3 years ago
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