What is the value of the expression (9x3)+7

Answers

Answer 1

Answer:

34

Step-by-step explanation:

(9x3)+7

PEMDAS says parentheses first

27+7

34

Answer 2
Answer: 34

Explanation: according to PEMDAS, the equation in the parenthesis are first. 9 x 7 = 27. 27 + 7 = 34

Related Questions

541.3 x 3.9 what is the answer pls write with explanation

Answers

Answer:

2111.07

Step-by-step explanation:

541.3 ×

3.9

Multiply each number by the number above it and the result will appear

Answer:

2111.07

Step-by-step explanation:

hope this will help you

Solve the equation using the Properties of Equality.

Answers

Answer:

m = 11/36

Step-by-step explanation:

6/7 m - 1/7 = 5/ 42

Multiply each side by 42 to clear the fractions

42(6/7 m - 1/7) = 5/ 42 *42

36m - 6 = 5

Add 6 to each side

36m -6+6 = 5+6

36m = 11

Divide each side by 36

36m/36 = 11/36

m= 11/36

Samantha has $48 to spend on used video games. Single player games cost $6 each and multi player games cost $12 each. What equation, in standard form, determines the number of single player games (x) and the number of multi player games (y) Samantha can buy?

Answers

Answer:

The equation is

6x + 12y = 48

Step-by-step explanation:

Standard form another way of writing a linear equation. It is in the form

Ax + By = C

Total amount with Samantha = $48

Single player games = $6 each

Multi player games = $12 each

Let

Number of Single player games = x

Number of Multi player games = y

The number of single player games (x) and the number of multi player games (y) Samantha can buy is

6x + 12y = 48

That is price × quantity of single player games + price × quantity of multi player games = Total amount with Samantha

help me with this please

Answers

Answer:

C. 7.5m

Step-by-step explanation:

[tex]8m \: up= 3m \: above \\ 12m \: up = x \: above[/tex]

Cross multiply

[tex]8x = 12 \times 3 \\ 8x = 36[/tex]

Divide both sides of the equation by 8

[tex] \frac{8x}{8} = \frac{36}{8} \\ x = 4.5 \\ 3 + 4.5 = 7.5m[/tex]

28mn/7n anmd 4m are these expressions equvialent

Answers

Answer:

yes; see below

Step-by-step explanation:

28mn / 7n

the n's cancel out

28m / 7

28/7 = 4

you are left with 4m

4m = 4m

Do 3 lines always, sometimes or never intersect at one point?

Answers

Answer:

Sometimes

Step-by-step explanation:

Three line sometimes intersect

A submarine is cruising at 25m below sea level. It descends 15m. What is the new depth?

Answers

Answer:

40m below sea level

Step-by-step explanation:

25m+15=40

Answer:

40 m below sea level

im assuming 25m+15m because the submarines decending

Point S is the midpoint of AK. AS = 5x - 3, and AK = 9x + 9. What is the length of AS?

Answers

AS=0.5AK
5x-3=0.5(9x+9)
5x-4.5x=4.5+3
0.5x=7.5
x=15
AS=5(15)-3=72

Hope this can help.

Choose Yes or No to tell whether the number is a
perfect cube.
a. 27
Yes
O No
b. 100
Yes
No
C. 125
Yes
No
d. 1,000
Yes
No

Answers

Answer:

A. Yes

B. No

C. Yes

D. Yes


A security guard uses 20 minutes of every hour to walk outside the school, leaving the remaining
40 minutes for monitoring inside the school. Write the ratio that represents the time the
security guard spends outside to the time spent inside.

Answers

Answer:

40/20, 40:20, 40 to 20

Step-by-step explanation:

20min/1hr

40min/1hr

Question order asks ratio from outside time to inside time so the 40 would come first. also, all the above are correct. You can write a ratio as a fraction, with a colon, or with the word to.

please help me :((

Which ordered pair is a solution to the system of inequalities?

Answers

Answer: D  (-3,5)

Step-by-step explanation:

Using both inequalities input the values for x and y to see if it fits the inequality .

y > - 2    

x + y < 4    

The first coordinates are (1,3)  Where 3 is the y value and 1 is the x value.

 

3 > -2      so this works because 3 is greater than -2

4 < 4   This does not work because 4 is not greater than 4 .

So the first point is not a solution to the systems of inequalities.

Now try the second point.

(0,4)    

4 > -2    4 is greater than -2  so it works for the first inequality.

0+ 4 < 4     0 plus 4 is 4  and 4 is not greater than 4 so the second points does not also work for the inequalities so it is not a solution.

Third point

(-2,-3)

-3 > -2    -3 is not greater than -2 so this means the points will not work for the system of inequalities.

Last point

(-3,5)  

5 > -2  5 is indeed greater than -2 so it fits the first inequality now try the second one.

-3 + 5 < 4     -3 +5 is 2   and 2 is less than 4 so it does work for both inequalities so D is the answer.

A trail map has a scale of 3 inches to 2 miles. On the map, a trail is
5 1/4 inches long.

How long is the actual trail?

A. 1 and 3/4 miles
B. 2 and 5/8 miles
C. 3 and 1/2 miles
D. 7 and 7/8 miles

Answers

Answer:

it is not c. that is what I know

Step-by-step explanation:

The length of the actual trail will be 3 and 1/2 miles. The correct option is C.

What is an expression?

The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.

Given that a trail map has a scale of 3 inches to 2 miles. The length of the actual trail will be calculated as:-

3 inches = 2 miles

1 inch = 2 / 3 miles

5¹/₂ inches = 5¹/₂ x  ( 2 / 3 )miles

5¹/₂ inches = 5.2 x ( 2 / 3 )

5¹/₂ inches = 3.5 miles = ( 2¹/₂) miles

Therefore, the length of the actual trail will be 3 and 1/2 miles. The correct option is C.

To know more about an expression follow

https://brainly.com/question/10724285

#SPJ2

Using the quadratic formula to solve x2 = 5 - X, what are the values of X?
-1 √21
2
-13 19
51-421
1119
2
Mark this and return
Save and Exit
Next
Submit

Answers

Answer:

The answer is

[tex]x = \frac{ - 1 + \sqrt{21} }{2} \: \: \: or \: \: \: x = \frac{ - 1 - \sqrt{21} }{2} [/tex]

Step-by-step explanation:

x² + x - 5 = 0

Using the quadratic formula

That's

[tex]x = \frac{ - b\pm \sqrt{ {b}^{2} - 4ac } }{2a} [/tex]

From the question

a = 1 , b = 1 , c = - 5

Substitute the values into the above formula and solve

We have

[tex]x = \frac{ - 1\pm \sqrt{ {1}^{2} - 4(1)( - 5) } }{2(1)} \\ x = \frac{ - 1\pm \sqrt{1 + 20 } }{2} \\ x = \frac{ - 1\pm \sqrt{21} }{2} [/tex]

We have the final answer as

[tex]x = \frac{ - 1 + \sqrt{21} }{2} \: \: \: or \: \: \: x = \frac{ - 1 - \sqrt{21} }{2} [/tex]

Hope this helps you

Point P is in the interior of ∠OZQ. If m∠OZQ = 125 and m∠OZP = 62, what is m∠PZQ?

Answers

Answer:

63°

Step-by-step explanation:

If point P is in the interior of ∠OZQ, then ∠OZQ = ∠OZP+∠PZQ. Given m∠OZQ = 125 and m∠OZP = 62, to get m∠PZQ, we will substitute the value of the angles given into the expression above as shown;

∠OZQ = ∠OZP+∠PZQ.

125 = 62 + ∠PZQ.

subtract 62 from both sides;

125 - 62 = 62 + ∠PZQ -62

63 = ∠PZQ

Hence the angle  m∠PZQ is 63°

2(x^2-7)+8=40 just answer pls

Answers

Answer:

x = +- sqrt 23

Step-by-step explanation:

positive and negative square root of 23.

Answer:

x=√ 23 and x=-√ 23

Step-by-step explanation:

2(x^2-7)+8=40

2x^2-6=40

2x^2=46

x^2=23

x=√ 23

x=-√23

Find f(−2) given that f(x)=2x2−3x+7.

Answers

Answer:

21.

Step-by-step explanation:

f(x) = 2x^2 - 3x + 7.

When x = -2,

f(-2) = 2(-2)^2 - 3(-2) + 7

= 2(4) - (-6) + 7

= 8 + 6 + 7

= 21.

Answer:

21

Step-by-step explanation:

So we have the function:

[tex]f(x)=2x^2-3x+7[/tex]

And we want to find f(-2).

To do so, substitute -2 for x. Thus:

[tex]f(-2)=2(-2)^2-3(-2)+7[/tex]

Square:

[tex]f(-2)=2(4)-3(-2)+7[/tex]

Multiply:

[tex]f(-2)=8+6+7[/tex]

Add:

[tex]f(-2)=21[/tex]

And we're done!

What is the opposite of 5.98​

Answers

Answer:

[tex]\huge\boxed{-5.98}[/tex]

Step-by-step explanation:

The opposite of 5.98 is the negative one.

Since 5.98 is a positive integer, it's opposite would be the negative integer having a "-" sign.

So, the opposite of 5.98 is:

=> -5.98

Hi there!

~

An opposite number of n is the exact same number as n on the other side of the number line. The opposite of n = -n.

⇒ Since 5.98 is positive, it's opposite must be negative.

⇒ We multiply 5.98 by -1 to find the opposite:

Opposite of [tex]5.98 = -(5.98) = -5.98[/tex]

         ↓

∴Good luck∴

A zoo is creating a new fenced living area for its tortoises. The zookeeper estimates that they will need a space that is about 40 feet by 50 feet to accommodate the animals. Which type of formula should the zoo use to determine how much fencing they will need to construct the pen? a.) Volume b.) Perimeter c.) Profit d.) Area

Answers

Answer:

I'd use perimeter. Will determine how much feet of materials will be needed.

Answer:

Perimeter

Step-by-step explanation:

You're finding the distance around a two-dimensional shape.

What is the 5th term in the following sequence:
2, 5, 11, 23...
Helpppp

Answers

Answer:The first few Thabit numbers are: 2, 5, 11, 23, 47, 95, 191, 383, 767, 1535, 3071, 6143, 12287, 24575, 49151, 98303, 196607, 393215, 786431, 1572863, ...

...

Thabit number.

Named after Thābit ibn Qurra

First terms 2, 5, 11, 23, 47, 191, 383, 6143, 786431

Largest known term 3×211,895,718 − 1

OEIS index A007505

Step-by-step explanation:

Vincent ran 24 laps on Monday. This is 66 and two-thirds percent of the maximum number of laps he has run in one day. What is the maximum number of laps Vincent has run in one day?

Number of Laps
33 and one-third percent
33 and one-third percent
33 and one-third percent

Answers

Answer:

36

Step-by-step explanation:

it just is just trust me its right

Answer:

36.

Step-by-step explanation:

I Took The Quiz (On Edge) and I Solved It and it happened to be 36. Hope This Helps :).

Which of the following options have the same value as 20% of 45?

Answers

Answer:

[tex]B. \: \frac{1}{5} \cdot 45[/tex]

[tex]E.\: 0.2 \cdot 45[/tex]

[tex]D. \: \frac{20}{100}\cdot 45[/tex]

Step-by-step explanation:

% means /100

[tex]20\% = \frac{20}{100} \\\\20/100 =0.2\\= 0.2\cdot 45\\\\\frac{20}{100}=\frac{1}{5} \\\\= \frac{1}{5} \cdot 45[/tex]

Answer:

B, D, and E.

Step-by-step explanation:

20% is 20/100, or 0.2

so, if we put 20/100 instead of 20%, we get 20/100*45

the same goes for the rest of them. (remember, 1/5 is the same as 0.2)

16 of the 22 students in Mrs. Burnham's class passed a quiz. About what part of the students passed the quiz?

Answers

Answer: about 3/4

Step-by-step explanation:

Either guess it by looking at the two numbers, or do it mathematically:

( 100 / 22 ) x 16 = 72%

72% is about 75% or 3/4

Find 5 consecutive numbers whose sum is 65.

Answers

Answer:

11, 12, 13, 14 and 15.

Step-by-step explanation:

This is because these numbers are consecutive and add up to 65

PLEASE GIVE BRAINLIEST

Answer:

11 + 12 + 13 + 14 + 15 = 65

consecutive numbers are numbers that don't have gaps in between

XY has a length of 20 and contains a point Z in between. If XZ = -5x+1 and ZY = 3x+5, find ZY.

Answers

Answer:

10.25 or 10 and 1/4

Step-by-step explanation:

Answer:

10.25

Step-by-step explanation:

Assuming that XZ = 5x + 1 (not -5x + 1)

XY = XZ + ZY

20 = 5x + 1 + 3x + 5

20 = 8x + 6

14 = 8x

8x = 14

x = 14/8 = 1.75

ZY = 3x + 5

ZY = 3 * 1.75 + 5

ZY = 5.25 + 5

ZY = 10.25

PLEASE HELP ME! AND THANK YOU!

Answers

Answer:

Real Numbers, Rational Numbers, Integers

Step-by-step explanation:


[tex]2(x + 7) + 10[/tex]
A. Two times the sum of x and seven plus ten
B. Two times the difference of x and seven plus ten
C. Two times x minus seven plus ten
D. Two times x plus the sum of seven and ten​

Answers

Answer:

2(x+7)+10

A. Two times the sum of x and seven plus ten

B. Two times the difference of x and seven plus ten

C. Two times x minus seven plus ten

D. Two times x plus the sum of seven and ten

[tex] \huge \purple {\tt {2(x + 7) + 10}} [/tex]

A. Two times the sum of x and seven plus ten

B. Two times the difference of x and seven plus ten

C. Two times x minus seven plus ten

D. Two times x plus the sum of seven and ten

Evaluate the expression for y=17
y+15=

Answers

Answer:  32

Step-by-step explanation:

y = 17  

and you are give the expression y + 15  

so substitute the value of y into the expression and add them

17 + 15 = 32

After taxes, Alexandra's take home pay is 7 10 of her salary before taxes. Enter and solve an equation to find Alexandra's salary before taxes for the pay period that resulted in $378 of take-home pay. Let s represent your variable.

Answers

Answer:

$540

Step-by-step explanation:

Let s be Alexandria's salary before taxes.

Let t be her take-home after taxes = $378

The question says her take-home is 7/10 of her salary before taxes

So to calculate what her salary was before taxes:

s x (7/10) = $378

We divide both sides by 7/10

S = 378 ÷ 7/10

S = 378x10/7

S = 3780/7

S = 540

Therefore from the calculations above, her salary before taxes was $540

a die is thrown once find the probability of getting number 3 ​

Answers

Answer:

0.5

Step-by-step explanation:

there are 6 sides the probability of getting 3 is 3/6=1/2=0.5

Answer as a fraction = 1/6

This is because there is one side labeled "3" out of 6 sides total.

If you need the decimal form, then that is approximately 1/6 = 0.167

Simplify 7(x + 3).
7x + 3
7x + 21
Ox+ 21
07x + 10

Answers

Answer:

The answer is 7x+21

Step-by-step explanation:

You just multiply 7 by both x and 3 but keep them separate

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