Mathematics High School

Jackie has one sister. Jackie's sister is 4 years older than her. The girls' ages add up to 28. Write an equation to solve for Jackie's age. *

Answers

Answer 1

Answer:

Jackie's age = 12 years and Her sister's age = 16 years

Step-by-step explanation:

Let the age of Jackie be x.

Her sister's age = (x+4)

The sum of ages = 28

ATQ,

x+x+4 = 28

2x+4 = 28

2x = 24

x = 12

Jackie's age = 12 years

Her sister's age = (12+4) = 16 years

Hence, this is the requiredsolution.

Related Questions

1. Circle or highlight the letter that correctly identifies the following exponential equation into its equivalent logarithmic form.
am = p

A. logp(a) = m B. loga(p) = m C. loga(m) = p D. Not Shown

Answers

9514 1404 393

Answer:

B. loga(p) = m

Step-by-step explanation:

Equivalent forms are ...

[tex]a^m=p\quad\longleftrightarrow\quad\log_a(p)=m[/tex]

_____

Additional comment

It helps me to remember that a logarithm is an exponent. The base of the exponent is the base of the logarithm.

f(x) = 9x2 - 4

Find the zeros of the function

Answers

Answer:

I believe that the answer is 14.

Step-by-step explanation:

hope it helped

Please help me I want to finish my math Homework!!

Answers

Answer: X<-10/7

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable

9. Which
of the following is a proper fraction?
A 12/10
B. 5/4
C.7/10
D.10 1/9

Answers

Answer:

Step-by-step explanation:

because in a proper fraction the numerator is less than the denominator

Can someone Help? thank you! :)

Answers

Answer:

Step-by-step explanation:

Since he’s leaving a 20% tip, we need 20% of 15.

To solve, multiply 20/100 (20%) by 15:

20/100*15 = 300/100 = 3

He will leave a $3 tip.

Answer:

Step-by-step explanation:

To solve this problem, first, one must convert the percent of the tip to decimal form. This can be done by dividing the percent by 100. Then one will multiply this value by the total bill.

20% * 15

= 0.2 * 15

= 3

Evaluate: 542 × 31

A
2,168

B
2,258

C
16,802

D
17,642

Answers

Answer:

C. 16,802

Step-by-step explanation:

h h h h h h h h h h

Simplify the expression.

7.5(–5.9)

–44.25

14.25

–11.21

44.25

Answers

Answer:

[tex] - 44.25[/tex]

Step-by-step explanation:

All i did was put it in a calculator

Answer:

hi the answer is :

-44.25

Marie donated 36% of her comic books to a
school. If she donated 135 comic books, how
many did she own before her donation?

Answers

Answer: 375

Step-by-step explanation:

Let x equal the number of comic books before her donation.

x × 0.36 = 135

135/0.36 = 375

у
What is the relation between the variables in the equation x?
10 ?
a. x varies directly with the square of y
b. y squared varies inversely with x
c. y varies directly with x squared
d. y varies inversely with x squared

Answers

Answer:

We need an equation to complete this question. please post another question, including an equation

Evaluate each function.
f(t) = t– 5t; Find f(t - 2)

Answers

Answer: -4t+8 is your answer.

also can you make me the brainiest please

Thank You

-Parshv

Pls help ASAP fast ...

Answers

i donk know Step-by-step explanation:

Answer:

Here is your answer

Step-by-step explanation:

witch one is the function

Answers

Answer:

Step-by-step explanation:

a function doesn't have any repeating x values

the answer is B. it’s a function cause there’s only one output for each input. so if you graph it no points will be on the same line

Can somone please help me and explain very much appreciated and this is 7th grade math btw

Answers

Answer:

4 8.95h + 10 < 115

Step-by-step explanation:

Answer: 4) 8.95h + 10 < 115

Step-by-step explanation:

We know the inequality will be equal to less than 115 since it states that the order was less than $115.

The equation would look like: some amount of shin guards times 8.95 each + $10 shipping = less than $115

8.95h + 10 < 115

(h in the given equation is the amount of shin guards)

How are the ateas of the squares related? HELP

Answers

Answer:

Step-by-step explanation:

i did this b4

Write an equation to find the total number of hours h the instructor exercises in any number of weeks w

Answers

have a pic of the problem?

There are 8 shirts in your closet, 4 blue shirts and 4 green shirts. You randomly select one to wear on Monday and then a DIFFERENT one on Tuesday. What is the probability you will wear blue on both days?

Question 8 options:

A. 5/14

B. 1/4

C. 1/2

D. 3/14

Answers

Answer:

1/4

Step-by-step explanation:

1/4 ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎

Help me WILL PICK BRAINLIEST

Ok so the equation is 5 (n - 4) = -60. We're supposed to find out what n is but I don't know. help meeeee

Answers

n is 7 :] ...

Step-by-step explanation:

pls mark brainlest

Answer:

n = -8

Step-by-step explanation:

5 (-8 - 4) = -60

5 (-12) = -60

-60 = -60

Do it on any calculator that's what you'll get

PLS HELP: SEVENTH GRADE MATH

Answers

Answer:x=15

Step-by-step explanation:3x15=45

45+45=90

x=15
45 divided by 3 equals 15

Triangle DEF is on a coordinate plane with its
vertices located at D( – 3,5), E( – 3, - 2), and
F(3,0). What is the area of ADEF in square
units?

Answers

Answer:

[tex]21\ \text{square units}[/tex]

Step-by-step explanation:

The points are [tex]D(-3,5), E(-3,-2)[/tex] and [tex]F(3,0)[/tex].

Area of a triangle is given by

[tex]A=\dfrac{D_x(E_y-F_y)+E_x(F_y-D_y)+F_x(D_y-E_y)}{2}[/tex]

[tex]\Rightarrow A=\dfrac{-3(-2-0)+-3(0-5)+3(5-(-2))}{2}[/tex]

[tex]\Rightarrow A=21\ \text{square units}[/tex]

The area of the given triangle is [tex]21\ \text{square units}[/tex].

please help me plzzz

Answers

Answer:

400, im positive

Step-by-step explanation:

im sure !!

400 I think no I’m sure

Segment MP is a diameter of circle O.

Circle O is shown. Line segment M P is a diameter. Line segment N O is a radius. Angle N O P is 150 degrees.

Which equation can be used to find mArc M N?

mArc M N – 150 = 360

Answers

Answer:

[tex]arc\ MN + 150 = 180[/tex]

Step-by-step explanation:

Given

[tex]\angle NOP = 150^\circ[/tex]

See attachment for circle O

Required

Find [tex]arc\ MN[/tex]

The sum of angles in a semi-circle is 180 degrees.

So:

[tex]arc\ MN + \angle NOP = 180[/tex]

This gives:

[tex]arc\ MN + 150 = 180[/tex]

Hence, the equation is: [tex]arc\ MN + 150 = 180[/tex]

Answer:

Step-by-step explanation:

just took exam and got 100%

ABC is the image of ABC under a translation

Answers

The translation is (x-8,y+5). To get from A to A’ you go left (x-axis) 8 times and up (y-axis) 5 times.

Help me please ????????

Answers

Answer:

300

Step-by-step explanation:

YOU CAN TAKE WHATEVER THE ANSWER AND L x W x H to get that right answer

Answer:

1700 cm squared :)

Step-by-step explanation:

Look at the image below

Answers

Answer:

your answer will be 12

Step-by-step explanation:

[tex]4x-6=42\\\\4x=42+6\\\\4x=48\\\\x=12[/tex]

have a nice day ^_^

Answer:

[tex]x=12[/tex]

Step-by-step explanation:

∠B=∠E

7x+10=947x=94-107x=84x=8yx=8y/7x=12

------------------

∠A=∠D

42=4x-64x=6+424x=48x=48/4x=12

⭒☆━━━━━━━☆⭒

hope it helps...

have a great day!!

A dairy company can make 1200 units of product each week. To meet the needs of its regular customers, the dairy company must produce at least 300 units of cheese, and 450 units of yogurt. If the profit for each unit of cheese is $60 and for each unit of yogurt is $90, how many units of each type of dairy product should the dairy company make to maximize its profit?
Answers:
300 yogurt and 450 cheese

300 cheese and 900 yogurt

450 yogurt and 750 cheese

750 yogurt and 450 cheese

Answers

Answer:

300 cheese and 900 yogurt

Step-by-step explanation:

300 cheese and 900 yogurt

HI PLS HELP
x^2 - 6x + ___ = ( _____ )^2
Select one:
a. 9; x + 3
b. 9; x - 3
c. -6; x + 6
d. -6; x - 6

Answers

Answer:

Hello

Step-by-step explanation:

Answer:

B. 9; x-3

Hope this helps!

"The difference between the circumference and diameter of a wheel is 18cm. Find the radius of the wheel. Use 3.14 for Pi. Round to the nearest tenth."

Answers

Answer:

[tex]4.2\ \text{cm}[/tex]

Step-by-step explanation:

d = Diameter of wheel

The difference between the circumference and diameter of a wheel is 18 cm.

[tex]2\pi r-d=18\\\Rightarrow \pi d-d=18\\\Rightarrow d(\pi-1)=18\\\Rightarrow d=\dfrac{18}{\pi -1}\\\Rightarrow d=\dfrac{18}{3.14-1}\\\Rightarrow d=8.41\ \text{cm}[/tex]

The diameter of the wheel is 8.41 cm so the radius will be [tex]\dfrac{8.41}{2}=4.205\approx 4.2\ \text{cm}[/tex].

How many degrees is angle A?

Answers

Answer:

128 degrees

Step-by-step explanation:

Answer: 112 degrees

============================================================

Explanation:

If we assume ABCD is a parallelogram, then the adjacent angles are supplementary.

So,

A+D = 180

A+68 = 180

A = 180-68

A = 112

The product of a binomial and a trinomial is x3+3x2-x+2x2+6x-2 Which expression is equivalent to this
product after it has been fully simplified?

Answers

The answer is the first one.
Explanation:
X^3 stays the same because there are no other cubed numbers in the problem
Next you combine the x^2s
The x^2s are +3x^2 and +2x^2
Since they are both positive, you add them: 3x^2 + 2x^2 = 5x^2
Next you do the x values
-x and +6x, also known as 6x - x = 5x
Lastly, you just add in the -2 and get:
X^3 + 5x^2 + 5x - 2

Which of the following statement(s) describes the rate of change of f over the interval 1.5 SXS 3? Select all that apply.

A. The rate of change is 1/2

B. The rate of change is 2

C. The rate of change is constant

D. The rate of change is increasing

Answers

The answer is going to be C

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