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4 years ago

Evaluate 3+jk + 13 when j = 2 and k = 6.

Mathematics

2 answers:

Andrew [12]4 years ago

6 0

Answer:

$28$

Step-by-step explanation:

$3 +jk + 13 \\ 3 + 2 \times 6 + 13 \\ 3 + 12 + 13 \\ 15 + 13 = 28$

mariarad [96]4 years ago

5 0

Answer:

Step-by-step explanation:

3+(2)(6)+!3

3+12+13

15+!3

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What is the value of b?

Elis [28]

62° is the answer. Just add 26 and 36.

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3 years ago

Stefanie is painting her bedroom. She can paint 12 2/3 square feet in 2/5 of an hour. How many square feet can she paint in one

aalyn [17]

Answer:

$31\frac{2}{3}$

Step-by-step explanation:

since its only 2/5 of 1 hour, two 2/5 equal 4/5 so we divide the 12 2/3 by 2 to find the 1/5 which is 6 1/3

$12\frac{2}{3}$ ÷2= $6\frac{1}{3}$

$12\frac{2}{3} +12\frac{2}{3}=25\frac{1}{3}$

$12\frac{1}{3} +6\frac{1}{3}=31\frac{2}{3}$

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3 years ago

Read 2 more answers

Robert is adding a In-ground pool to his his back yard. The pool will be 13 m long. 10 m wide and 2m deep . How much water in m

Novay_Z [31]

Answer:

d) 260m^3

Step-by-step explanation:

length x width x height

13*10*2 = 260m³

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3 years ago

What is the probability she will roll a number divisible by 3?

Len [333]

Answer: G. 33.3%

Step-by-step explanation:

From 1 to 12, there are four numbers divisible by 3: 3, 6, 9, 12. Since there are 12 numbers in total, that means you have a 4/12 chance of picking a number divisible by 3, which when converted to decimal from 1/3 is 33.3%

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3 years ago

Devon purchased a new car valued at $16,000 that depreciated continuously at a rate of 35%. Its current value is $2,000. The equ

irga5000 [103]

I hope the equation will be 2000=16000(1-r)^t because t is missing in the equation which we need to find.

Given rate: r= 35%= 0.35.

So, first step is to plug in 0.35 for r in the given formula to get the value of t.

Hence, the equation will be:

2000=16000(1-0.35)^t

2000=16000(0.65)^t (By subtraction)

2000/16000= 16000(0.65)^t /16000 (Dividing each sides by 16000)

0.125 = 0.65^t (By simplifying).

log 0.125 = log 0.65^t (Taking log each sides to isolate t).

log 0.125 = t log 0.65 (By applying the log property).

$\frac{log 0.125}{log 0.65} =t$ (Dividing each sides by log 0.65)

-0.903/-0.187 =t

t= 4.83

t= 5 ( Rounded to nearest integers)

So, Devon's car is 5 years old.

7 0

4 years ago