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zaharov [31]
3 years ago
12

. Solve for the given variable. a. 4y + 3 = 19 b. 12n - 3 = 5

Mathematics
2 answers:
Kamila [148]3 years ago
4 0

Answer:

(a) 4

(b) 2/3

Step-by-step explanation:

(a) 4y+3=19

4y=19-3

4y=16

y=4

(b) 12n-3=5

12n=5+3

12n=8

n=8/12

n=2/3

S_A_V [24]3 years ago
4 0
A.4
B. 2/3
Because is makes sense
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Geometry question pls help
sammy [17]

Answer:

37 degrees

Step-by-step explanation:

As XW and YZ are parallel lines, you can use the co-interior angle rule to solve for x.

This is when you see a C-shape between parallel lines. The rule states that the sum of these two co-interior angles is 180 degrees.

Therefore,

⇒ 3x - 5 + 2x = 180

⇒ 5x - 5 = 180   [collect like terms of x]

⇒ 5x = 185   [add 5 to both sides]

⇒ x = 37   [divide both sides by 5]

Hope this helps! :D

4 0
2 years ago
What is the area of this triangle? Use the formula A=bh/2 A. 22 yd² B. 16 yd² C. 14 yd² D. 8 yd²
Lorico [155]
A = (1/2) b* h
OR
A = (b*h)/2
A = (8* 2)/2
A = 16/2
A = 8 yd^2
Letter D
3 0
3 years ago
A small swimming pool has a circumference of 3π feet. Select the true statement about the pool.
Gnoma [55]

Answer:

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Step-by-step explanation:

i just knowvghnm,.

8 0
3 years ago
Eric has $100,000 in savings account.The interest rate is 8 % per year and is not compounded.To the nearest Dollar,how much will
Roman55 [17]

Answer:

To calculate the simple interest, we say

S.I = (PxRxT)/100

Where P = the principal amount

R= rate in terms of %

And T= time.

Now P= $100 000

R= 8%

T= 3 years

S.I= (100,000 x8 x3)/100

=$2 400 000/100

= $24, 000

So the interest is 24000

Total amount he will be having = 100000 + 24 000

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Step-by-step explanation:

7 0
3 years ago
The average weight of the class of 35 students was 45 KG. with the admission of a new student the average weight came down to 44
melamori03 [73]

The weight of the new student is 27 kg.

Average weight

= total weight ÷total number of students

<h3>1) Define variables</h3>

Let the total weight of the 35 students be y kg and the weight of the new student be x kg.

<h3>2) Find the total weight of the 35 students</h3>

<u>45 =  \frac{y}{35}</u>

y= 35(45)

y= 1575 kg

<h3>3) Write an expression for average weight of students after the addition of the new student</h3>

New total number of students

= 35 +1

= 36

Total weight

= total weight of 35 students +weight of new students

= y +x

44.5  =  \frac{y + x}{36}

<h3>4) Substitute the value of y</h3>

44.5 =  \frac{1575 + x}{36}

<h3>5) Solve for x</h3>

36(44.5)= 1575 +x

1602= x +1575

<em>Subtract 1575 from both sides:</em>

x= 1602 -1575

x= 27

Thus, the weight of the new student is 27 kg.

7 0
2 years ago
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