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3 years ago

Help me solve this problem please

Mathematics

1 answer:

lilavasa [31]3 years ago

5 0

Her mother did not gave her enough money.
each pound of bananas costs 80 cents. 5 pounds of that is $0.8 x 5 = $4.00
each pound of apples costs $1.40. 5 pounds of that is $1.40 x 5 = $7.00
$4.00 + $7.00 = $11.00
Therefore, she needs 11 dollars to buy 5 pounds of each bananas and apples. She needs to ask her mother for 1 more dollar.

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How to solve 45=6n+3n

Naddik [55]

<em>45 = 6n + 3n
45 = 9 n
dividing 9 on other side
45 / 9 = n
5 = n
or
n = 5 answer..</em>

5 0

2 years ago

Read 2 more answers

Multiply and Divide Whole Numbers explain what to do and how to do it

rodikova [14]

Multiplication is a simple way of adding
For example 6x8 is the same as 8+8+8+8+8+8

Any number multiplied by 1 is itself E.g 4x1 = 4

Multiplying by 2 is just doubling

Multiplying by 10 is adding a 0 to the original number

If it is a big number that you do not know how to multiply mentally split it up
E.g 17x13
Split 13 into 10 and 3
17x10= 170
17x3= 51
Then add these numbers
221

If you ever get stuck, use the long method, add them instead, you will get to the right answer but it will take longer

Dividing is not as simple
Like multiplication dividing by one will leave you with the same answer

Dividing by two means you half the number, which may give you a decimal

Bigger numbers are trickier, and you may be allowed to use a calculator for numbers
Below are a number of links, these websites will teach you how to improve your multiplication and division skills:

http://www.bbc.co.uk/schools/gcsebitesize/maths/number/decimalsrev3.shtml

https://m.youtube.com/watch?v=XiXeu9FxAcQ

https://www.tutorialspoint.com/multiply_and_divide_whole_numbers/multiplication_as_repeated_addition.htm

8 0

3 years ago

Read 2 more answers

Melani has $3,106.12 in her back account on Wednesday. On Thursday she deposited $85 .On friday she spent $8.25 for lunch. What

lesya692 [45]

Answer:

Melanie's account balance now is $3182.87.

Step-by-step explanation:

Given:

Amount of money in her account = $3106.12

Amount deposited on Thursday = $85

Amount spent for lunch on Friday = $8.25

We need to find the remaining balance in Melanie's account.

Solution:

Now we know that;

Remaining balance in her account is equal to Amount of money in her account plus Amount deposited on Thursday minus Amount spent for lunch on Friday.

framing in equation form we get;

Remaining balance in her account = $\$3106.12 +\$85 - \$8.25=\$3182.87$

Hence Melanie's account balance now is $3182.87.

3 0

3 years ago

Of the cars in the parking lot, 20% are silver. If 20% of the cars is 48 cars, what is the total number of cars in the parking l

astraxan [27]

To solve this, we are going to set up a simple rule of three: If 20% are 48 cars, 100% how many cars will be:
$\frac{20----\ \textgreater \ 48}{100----x}$
Now, we can express this as a proportion ans solve for $x$ :
$\frac{20}{100} = \frac{48}{x}$
$x= \frac{(100)(48)}{20}$
$x=240$

We can conclude that there are 240 cars in the parking lot.

3 0

2 years ago

What is 5s-9<2s+12

IRINA_888 [86]

$5s-9 < 2s+12\ \ \ \ \ |\text{add 9 to both sides}\\\\5s < 2s+21\ \ \ \ |\text{subtract 2s from both sides}\\\\3s < 21\ \ \ \ |\text{divide both sides by 3}\\\\\boxed{x < 7\to s\in(-\infty,\ 7)}$

5 0

2 years ago