5th grade math. Correct answer will be marked brainliest.

Answer:

1. 7.1

2. 11.5

3. 24.2

Step-by-step explanation:

you use P.E.M.D.A.S. for all the equations.

so you do thr multiplication and then the addition

1. 2(1.8)+3.5= 3.6+3.5= 7.1

2. 2(4)+3.5= 8+3.5=11.5

3.2(6.9)+3.5= 13.8+3.5= 24.2

hope this helps

Answer:

X= 423

Step-by-step explanation:

This answer has 3 digits. The tens digit (2) is half of the hundreds (4). And 4+2+3=9. Also this number is odd

Answer:

A: The magnitude is 2 StartRoot 13 EndRoot, and the direction angle is about 34°.

Step-by-step explanation:

did it on edge and got it right

Answer:AAAAA

Step-by-step explanation:

just took it

Answer:

i so want to know this aswell

Step-by-step explanation:

Answer:

4182

Step-by-step explanation:

I gotten this question so I decided to find the answer but I still got it wrong and it said the answer was 4182

Answer: -5/4

Step-by-step explanation:

The equation for solving for slope is y2-y1/x2-x1

substitute

-1-(-6) / 1-5

5/-4

slope= -5/4

Answer:

1/3

Step-by-step explanation:

i hope its right ...

Answer:

133.65

Step-by-step explanation:

198 - 49.5=148.50

145.50 - 14.85= 133.65

Answer:

280

Step-by-step explanation:

80 divided by 2 = 40

40 x 5 =200

200 + 80 = 280

Answer:

18 ways

Step-by-step explanation:

The computation of the number of ways that could be choose your dinner as follows:

= 3 meat choices × 3 vegetable choices × 2 desserts

= 18 ways

By multiplying all the three things we can determined the number of ways

Answer:

The answer is "16%".

Step-by-step explanation:

Its empirical rule suggests which 68% of the very first standard deviation, 95% of the very first 2 standard deviations or 99.7% of the very first three standard deviations of the variance average fall.

[tex]z =647 \\\\z=\frac{(647-547)}{100}= \frac{100}{100}=1[/tex]

The empirical rule indicates the first standard deviation around 68 percent.

So,

[tex]=\frac{(100-68)}{2} \\\\=\frac{32}{2} \\\\= 16 \% \ drop \ 647 \ and \ above[/tex]

Answer:

5x + 3m + 10

Step-by-step explanation:

Remove parentheses:

3m+2+5x+8

Group like terms:

5x + 3m + 2 + 8

Add the numbers 2 + 8=10:

5x + 3m+ 10

Answer:

3m+10+5x

Step-by-step explanation:

look at it without parenthesis might make it easier

3m+2+5x+8

Answer:

Step-by-step explanation:

Needed:

Answer:

8.7, 8.9, 9.0

Step-by-step explanation:

Answer:

8.7, 8.9, & 9.1

Step-by-step explanation:

The decimal places go up by tens like all other numbers. Therefore, 8.7, 8.9, and 9.1 are all in between 8.6 and 9.2

Answer:

Lo resuelves como de costumbre :)

Step-by-step explanation:

Answer:

218

Step-by-step explanation:

9514 1404 393

Answer:

  x/50 = 40/100

  x = 20

Step-by-step explanation:

It is useful to remember that the symbol % is a shorthand way to write /100. (Similarly, the symbol ‰ is a shorthand way to write /1000.) This means the number 40% represents the ratio 40/100. In decimal, that is 0.40 (forty hundredths).

When this is the fraction that represents the number of test questions that are correct, you can see that the proportion should be ...

  correct / total questions = x / 50 = 40 / 100 . . . . the desired proportion

Multiplying by 50 gives the value of x:

  x = 50(0.40)

  x = 20 . . . . the value of x

Answer:

0.0625 should be the answer of .5 to the fourth power.

Answer:

m/4

Step-by-step explanation:

Answer:

m/4

Step-by-step explanation:

A quotient is the result of division, so when you divide m by 4, you get m/4

Answer:

−8−x=x−4x

Step 1: Simplify both sides of the equation.

−8−x=x−4x

−8+−x=x+−4x

−x−8=(x+−4x)(Combine Like Terms)

−x−8=−3x

−x−8=−3x

Step 2: Add 3x to both sides.

−x−8+3x=−3x+3x

2x−8=0

Step 3: Add 8 to both sides.

2x−8+8=0+8

2x=8

Step 4: Divide both sides by 2.

2x

2

=

8

2

x=4

Answer:

x=4

x = 4

Hope I helped!!!!!!!

Answer:

C. 2

Step-by-step explanation:

[tex]3 \frac{1}{2} \times \frac{4}{7} \\ = \frac{3 \times 2 + 1}{2} \times \frac{4}{7} \\ = \frac{7}{2} \times \frac{4}{7} \\ = 2[/tex]

hope it helps :)

Answer:

C

Step-by-step explanation:

3 1/2 = 7/2

4/7 = 4/7

7/2 x 4/7 = 28/14 or 2

Answer:

not sure

Step-by-step explanation:

 i dont know how to

Answer:

54 ezzzzzzzzzzzzzzbro

Answer:

Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.

Step-by-step explanation:

Let [tex]x[/tex] denote the number of rafts seating 3 people and [tex]y[/tex] the number of rafts seating 5 people. The total number of rafts is 13, so [tex]x+y=13[/tex]. We can also assume that every raft is filled to the brim (it isn't stated explicitly though, but it's probably the intention of the question maker), so [tex]3x+5y=53[/tex].

It's always a good idea to put these equations under each other:

[tex]\left \{ {{x+y = 13} \atop {3x+5y=53}} \right.[/tex]

We can subtract the first equation three times from the second one to obtain [tex](3x+5y)-3(x+y) = 53 - 3(13)\\3x-3x + 5y - 3y = 53 - 39\\2y = 14\\y=\frac{14}{2} = 7[/tex]

Now, substitute this found value for [tex]y[/tex] into [tex]x+y = 13[/tex] and we see that [tex]x=6[/tex]. We are now done: Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.

................... rafts

2×(4×3)?24

4×3=12

12×2=24

(2×4)×3=24

Answer:

Step-by-step explanation:

5[tex]\pi[/tex]=15.70...

To round a number to the nearest tenth , look at the next place value to the right (the hundredths)which is 0 in this question.

Thus, it will become 15.7

The circumference of the circle is 5π mm or 15.7 mm if the diameter of the nickel (circle) is 5 millimeters.

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

It is given that:

The diameter of the nickel (circle) is 5 millimeters

D = 5 millimeters

The circumference of the circle = πD

Plug D = 5 millimeters in the above formula:

The circumference of the circle = 5π mm

As we know,

π = 3.141 ≈ 3.14 (Rounded to the nearest the Hundredths Place)

The circumference of the circle = 5π = 15.70796 mm

The circumference of the circle = 15.70796 = 15.7 mm

(Rounded to the nearest Tenths Place)

Thus, the circumference of the circle is 5π mm or 15.7 mm if the diameter of the nickel (circle) is 5 millimeters.

Learn more about circle here:

brainly.com/question/11833983

#SPJ2

Answer:

The new expression is:  12 x^2 - 12 x+ 30

Step-by-step explanation:

if C = x^2 + 7

and

D = 3 x^2 - 4 x + 3

Then, 3 C + 3 D can be obtained via:

3 ( x^2 + 7 ) + 3 ( 3 x^2 - 4 x + 3 )  = 3 x^2 + 21 + 9 x^2 - 12 x + 9 =

= 12 x^2 - 12 x+ 30