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lions [1.4K]
3 years ago
5

Solve the given equation 7ex – 9 = 10

Mathematics
1 answer:
maria [59]3 years ago
3 0

Answer: x = 10.18

Step-by-step explanation:

7ex – 9 = 10

(x-9)*ln7 = ln 10

x-9 = 2.30/1.95

x = 10.18

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Adams sister wants to watch her intake of fat per day he estimates that the dinner will be 48grams of fat what percentage of her
Gnom [1K]
Let's assume that the total daily allowance of fat is given, otherwise let's just assign a variable for it.

We can make the formula based on the given data.

Percentage = Total daily allowance of fat given / total intake of fat per day * 100

So, the equation Percentage = Total / 48 * 100 will be used in order to get the percentage of the total amount.

7 0
3 years ago
Andrew pays $15 for a haircut . He leaves a 20% tip. What is the total amount andrew pays for the haircut, including the tip?
beks73 [17]

Answer:

$18.00

Step-by-step explanation:

Start by working out 10%, that's easy:

15 ÷ 10 = 1.5

That means a 10% tip would be $1.50, so a 20% tip would be twice that amount:

1.50 x 2 = 3

A 20% tip is $3.00, and added on to the original $15.00, the total is $18.00

7 0
3 years ago
Please help me solve
Helen [10]

Answer:

$110

Step-by-step explanation:

we know

selling price = cost price + profit.

given

selling price of TV = $121

profit = 10%of cost

selling price of TV = cost of TV + 10%cost of TV

121 = cost of TV + 10/100 cost of TV

=> 121 = (100 cost of TV + 10 cost of TV)/100

=> 121*100 = 110 cost of TV

=> cost of TV = 121*100/110 = 110

Thus, cost price of TV is $110(option A)

8 0
4 years ago
The length and width of a rectangle are 4 feet and 3 feet, respectively. A similar rectangle has a width of 9 feet. What is the
zvonat [6]
The answer is B, hope this helps
5 0
3 years ago
Pablo is dividing a dish of brownies for a party. The brownie mix cost $2.89. He cuts the brownies into squares that measure 3 i
d1i1m1o1n [39]
Okay so if the pan is 12 inches wide you can divided 3 inches by that and get 4. Then do the same thing for the length, 18, and you get 6. Multiply 6 by 4 to get the number of brownies Pablo cut.

You can check my answer by drawing a box on a piece of paper, and drawing little boxes inside. Keep in mind that each brownie is 1 unit, or 3 inches.
8 0
3 years ago
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