How many 3-digit multiples of 13 are there?
Answers
Answer:
There are 69
Step-by-step explanation:
1+(104-998)/13=69
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2x 6=28 Write the Value of x
Tina is fixing to get rectangular signs he wants to space metal trim around the side and just the rectangle measures 32 inches by 9 inches how much trim will Tina need
b) How much will she have after 5 weeks?
c) How many weeks until she has $255?
Answers
Savings : $75
Babysitting earnings : $10 a week.
a) A = $75 + $10w
b) A = $75 + $10 * 5 weeks
A = $75 + $50
A = $125
c) A = $75 + $10w
$255 = $75 + $10w
$255 - $75 = $10w
$180 = $10w
$180/$10 = w
18 = w
Keyanna needs to babysit for 18 weeks.
Answers
48/2=24
24 is the answer for the number of quarts.
Answers
Answer:
The dimensions of the bar are width = 4.68099 feet and length = 10.06198 feet
Step-by-step explanation:
A chocolate bar has a rectangular shape, therefore it's area is given by the following formula:
area = width*length
In this case the length is 0.7 feet longer than twice the width, therefore:
length = 2*width + 0.7
Applying the second equation on the first one and using the data from the question we have:
47.1 = width*(2*width + 0.7)
47.1 = 2*width² + 0.7*width
2*width² + 0.7*width = 47.1
width² + 0.35*width = 23.55
width =
width = 4.68099 or width = -5.03099
Since the width can't be negative, it can only be 4.68099 feet.
length = 2*4.68099 + 0.7 = 10.06198 feet.
Answers
Factorise:
We choose 2 numbers that add to -18, and multiply to 144, these numbers are +6 and -24, we put it into the brackets:
(x + 6)(x - 24) <- x = the interted sign of the numbers inside the brackets
E.g. +6 turns into -6 and -24 turns into +24
x must = -6 or = +24
(x^2 - 18x - 144) = 0
What two factors add up to equal -18 AND multiply to equal -144?
For a product to be a negative, one of the factors have to be a positive, and the other has to be a negative (positive times a negative equals a negative).
And now that we know that, we know that the negative number has to be larger than the positive because of the -18.
What two factors add up to equal -18 AND multiply to equal -144?
Negative 24 and positive 6.
(x - 24)(x + 6)
Answers
Lisa spent $13.50
Answers
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
We must do parenthesis first.
72 - 13 = 59
We have now
20 + 15(59) - 67 + 6
20 + 885 - 67 + 6
905 - 67 + 6
905 - 61
844
Hope this helped! If you have any questions then leave a comment.
Good morning
20+15(72-13)-67+6
= 20+15(59)-67+6
= 20+885-67+6
= 905-67+6
= 838+6
= 844
I hope that's help !
Happy Sunday :)