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alukav5142 [94]
3 years ago
8

36x - 63 = k(4x - 7) Need help, I dont know what im doing wrong here

Mathematics
1 answer:
ozzi3 years ago
6 0

Answer: k= 9

x= 7/4

Step-by-step explanation:

https://www.symbolab.com/solver/order-of-operations-calculator/36x%20-%2063%20%3D%20k%5Cleft(4x%20-%207%5Cright)

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7. The ratio of the weight of cement to the weight of sand in a concrete mixture is 1:3.
kondaur [170]
1 3 6 concrete ratio
Concrete
Proportions by Cement No. of 50 kg Sand to total aggregate
1:3:6 4.0 31
1:4:5 4.0 41
1:3:5 4.4 35
1:4:4 4.5 47
4 0
3 years ago
A driver travels for 2 hours at 80 miles per hour, during
algol [13]

Answer:

$84

Step-by-step explanation:

Find how many miles she traveled by multiplying 80 and 2.

80 × 2 = 160 miles

Next find out how much she gets paid for her mileage by multiply $0.60 and 160.

160 × $0.60 = $96.00

Now find out how much she spent on gas. She gets 40 miles per gallon so solve how many gallons she used by dividing 160 by 40.

160 ÷ 40 = 4 gallons

Then multiply 4 gallons by $3.00

4 × 3 = $12

To find the net rate of pay subtract 96 and 12

$96 - $12 = $84

8 0
3 years ago
Read 2 more answers
A nature center offers 2 guided walks. The morning walk is two-third mile. The evening walk is three-sixths mile. Which walk is
MArishka [77]

Answer:

Evening walk is shorter.  

Step-by-step explanation:

We have been given that a nature center offers 2 guided walks. The morning walk is two-third mile. The evening walk is three-sixths mile. We are asked to find the shorter walk.

Let us compare both fractions by making the same denominator.

\text{Two-thirds}=\frac{2}{3}

\text{Two-thirds}=\frac{2\times2}{3\times2}

\text{Two-thirds}=\frac{4}{6}

\text{Three-sixth}=\frac{3}{6}

Upon making common denominator, we can see that two-thirds are equal to four sixths.

Since three-sixths is less than four-sixths, therefore, evening walk is shorter.

We will draw two rectangles, one with 6 sub-parts and other with three sub-parts.

We will shade 2 parts out of 3 sub-parts to represent 2/3 and shade 3 parts out of 6 sub-parts to represent 3/6.

Then we will further divide three sub-parts into 6 sub-parts as shown in the diagram that will represent 4/6.

5 0
3 years ago
Plsssss help me illl appreciate it
Crazy boy [7]

Answer:

(2,2)

Step-by-step explanation:

-3 + 5 = 2

4 - 2 = 2

7 0
3 years ago
Read 2 more answers
....how do you solve this? 5 √6 ( 4 - √10 )
igomit [66]

Answer:

10.29

Step-by-step explanation:

5 √6 ( 4 - √10 )

√6= 2.45

5x2.45=12.25

√10=3.16

4-3.16=0.84

12.25(0.84)=10.29

6 0
3 years ago
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