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3 years ago

4. Lacy wants to buy a bag of

Mathematics

1 answer:

likoan [24]3 years ago

6 0

Lacy could have thought that .15 in greater than .4

She can add an zero after .4 to correct it.

Step-by-step explanation:

Given,

The weight of two bags of apples is 3.15 and 3.4 pounds.

The weight of second bag can also be written as 3.40 pounds

Therefore,

The bag of 3.40 pounds is greater in weight than a bag of 3.15 pounds of apples so it will cost more.

Lacy could have thought that .15 in greater than .4

She can add an zero after .4 to correct it.

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Using mental math, the approximate tip to leave for a bill of $81.79, if you tip 15% would be _____..a.$8.20b.$10.30c.$12.30d.$1

ASHA 777 [7]

Answer:

Using mental math, the approximate tip to leave for a bill of $81.79, if you tip 15% would be?

c.$12.30

Step-by-step explanation:

10% is $8.179, then 5% is a half of this sum, i.e. $8.179:2=$4.0895

3. 15%=10%+5% and in $ it is $8.179+$4.0895=$12.2685 that is nearly $12.30.

8 0

3 years ago

Select the two values of x that are roots of this equation.<br> 2x2 + 11x - 6 = 0

sukhopar [10]

Answer:

2×2 +11x - 6 =0

4 + 11x - 6 = 0

11x - 6 =4

-6 + 4 = 11x

-2 = 11x

X =11/2

X =5.2

8 0

3 years ago

3/25 converted to a decimal

Yakvenalex [24]

Answer:

.12

Step-by-step explanation:

First set up your proportion.

$\frac{3}{25} = \frac{12}{100}$ Multiply 3 and 25 by 4 to get 12 and 100.

the answer would be 12 hundredths or .12

8 0

3 years ago

The area of a rectangle is 5 4/5 square meters. The width of the rectangle is 2 1/4 meter. Which is the best estimate for the le

AlekseyPX

5 4/5 divided by 2 1/4=

change to decimals:

5.8/2.25=2.57

change 2.57 to fraction: about 2 3/5

so, the estimate for the length is 2 3/5

3 0

3 years ago

7c??? help on 7c???? please?!

Salsk061 [2.6K]

It would be a 12.5% increase. First you find her monthly wages: $10.50 x 160 hours= $1680 a month. Her insurance is $210/month. So you need to find what percentage 210 is of 1680. So $1680*x=210$ . Solve for x by dividing 1680 on both sides and you get 0.125. Multiply by 100 to get the percentage and you get 12.5%. Check your answer by multiplying 1680 x 0.125 and you get 210.

6 0

3 years ago