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Zielflug [23.3K]
3 years ago
5

So I need some help please

Mathematics
1 answer:
Assoli18 [71]3 years ago
4 0

Answer:

Sorry but i can't see the choices.

Step-by-step explanation:

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Whisper the numbers in standard form and unit form 42
prisoha [69]

Answer:

In standard form 42=4.2\times 10^1

In unit form, 42 as 4 tens 2 ones

Step-by-step explanation:

<u>Standard form</u>: It is the way of writing down the numbers easily in a very large or small numbers.

Rules for  writing a number in standard form is that first you write down a number between 1 and 10, then multiply the number with 10(to the power of a number).

Now, to write

42 in standard form: 4.2\times 10^1.

Unit form: it  is a form that express the number by giving the number of place value within the number.

Unit form of 42:

42 is written as  4 tens , 2 ones.


7 0
3 years ago
Factor the common factor out of –12 + 15x. A. x(–8 + 5x2) B. 3(–4 + 5x) C. x(–12 + 15x) D. 3x(–4 + 5x)
Reika [66]
It will be B >>>>>>>>>
4 0
3 years ago
Read 2 more answers
Marissa wants to blend candy selling for $1.40 per pound with candy costing $2.90 per pound to get a mixture that costs her $2.0
fiasKO [112]

Answer:

30 lb of $1.80 candy

60 lb of $1.20 candy

Step-by-step explanation:

It generally works well to let a variable represent the quantity of the most-expensive contributor. Here, we can let x represent pounds of $1.80 candy.

Then 90-x will be pounds of $1.20 candy, and the total cost of the mix will be ...

 1.80x + 1.20(90-x)

We want that to be the same value as 90 pounds of $1.40 per pound mix, so the equation is ...

 1.80x + 1.20(90 -x) = 1.40(90)

This can be simplified and solved like any two-step linear equation.

 0.60x + 108 = 126 . . . . . simplify

 0.60x = 18 . . . . . . . . . . . .subtract 108

 x = 30 . . . . . . . . . . . . . . . divide by 0.60. This is pounds of $1.80 candy

 90-x = 60 . . . . . pounds of $1.20 candy

30 pounds of candy priced at $1.80 per pound, and 60 pounds of candy priced at $1.20 per pound should be used to make a mix that costs $1.40 per pound.

Mark me Brainliest please!

5 0
3 years ago
Read 2 more answers
Quantavius took a hiking with some friends.The friend started early and walked a while before stoping to each lunch.After lunch
kifflom [539]

Answer:

7\frac{3}{8} \ miles

Step-by-step explanation:

Given:

After lunch the friends walked 6 3/4 miles before arriving at the end of the trail.

The trail is 14 1/8 miles long.

Question asked:

How long did the friends walk before lunch ?

Solution:

Let the friends walk before lunch in miles = x

As total length of trail is given 14\frac{1}{8}\ miles , we can conclude:

Total length of trail = The friends walk before lunch in miles  + The friends walk after lunch in miles

14\frac{1}{8} =x+6\frac{3}{4} \\ \frac{14\times8+1}{8}=x+\frac{6\times4+3}{4} \\\frac{113}{8} =x+\frac{27}{4}

Subtracting both side by \frac{27}{4}

\frac{113}{8} -\frac{27}{4} =x+\frac{27}{4}-\frac{27}{4}

Taking LCM of 4 and 8 ,we get 8

\frac{113-54}{8} =x\\\\\frac{59}{8}  =x\\\ \\7\frac{3}{8} = x

Therefore, the friends walk before lunch is 7\frac{3}{8} \ miles.

6 0
4 years ago
Robert had $58.62 in his bank account. He got paid $142.76. He then bought a new jacket for $63.76. He also bought 2 new movies
Eddi Din [679]
Robert now has $135.64.
3 0
4 years ago
Read 2 more answers
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