All categories

3 years ago

Solve for k kk. k − 7 8 = 5 2

Mathematics

2 answers:

dimulka [17.4K]3 years ago

5 0

Answer:

k = 59.8

Step-by-step explanation:

Given

k - 7.8 = 52 ( isolate k by adding 7.8 to both sides )

k = 59.8

bekas [8.4K]3 years ago

3 0

K will equal 59.8 I’m pretty sure

You might be interested in

There are two fields whose total area is 56 square yards. One field produces grain at the rateof34bushel per square yard; the ot

fenix001 [56]

Answer:

the first field (rate 3/4) has 32 square yards and the second field (rate 2/3) has 24 square yards.

Step-by-step explanation:

With the statement we can make a system of 2x2 equations, where:

"x" is the area of the first field

"y" is the area of the second field

However,

x + y = 56 => x = 56 - y

3/4 * x + 2/3 * y = 40

replacing we have:

3/4 * (56 - y) + 2/3 * y = 40

42 - 3/4 * y + 2/3 * y = 40

-0.0833 * y = 40 - 42

y = -2 / -0.0833

y = 24

now for x:

x = 56 - 24

x = 32

This means that the first field (rate 3/4) has 32 square yards and the second field (rate 2/3) has 24 square yards.

3 0

3 years ago

2. Which answer shows another way of writing the expression below?

maria [59]

Answer:

D. 6b - 2

Step-by-step explanation:

<u>Simplify the expression:</u>

4(3b) – 2(3b + 1) =
12b - 6b - 2 =
6b - 2

Correct choice is D

6 0

3 years ago

Read 2 more answers

A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. if 13 wood and 10 graphite are defective and

Nimfa-mama [501]

Let's split the problem in non-intersecting subsets: we have $87$ good wood racquets, $13$ defective wood rackets, $90$ good graphite racquets, $10$ defective graphite rackets.

The probability that the racket is wood or defective covers the following subsets: good wood, defective wood and defective graphite, which have, respectively, $87$ , $13$ and $10$ elements.

Since the total is $200$ elements, the probability is