Mathematics High School

1. Fred bought 7 new baseball trading cards to
add to his collection. The next
day his dog ate half of his collection. There are
now only 38 cards left.
How many cards did Fred start with ?

Answers

Answer 1

Answer:He has 74 baseball cards

Step-by-step explanation:

He has 38 baseball cards left, and since his dog ate half of it he must have had double the amount of cards. So 38 + 38 . This equals to 74.

Answer 2

Answer:3

Step-by-step explanation:

Related Questions

A meat seller bought 250kg of meat fo GHC 224 At what price per kg should he retail it in order to make proft of 25%

Answers

Answer:

GHC1.19

Step-by-step explanation:

Given data

Mass of meat= 250kg

Cost of meat= GHC 224

cost price per kg

=224/250

=GHC 0.896 per kg

% profit= selling-cost/selling*100

let the selling price be x

25= x- 0.896/x*100

0.25= x-0.896/x

cross multiply

0.25x=x- 0.896

0.25x-x= - 0.896

0.75x= 0.896

x= 0.896/0.75

x=GHC1.19

If the diameter of a circle is 3 and pi=3.14, what is the circumference? Im confused on how to get the circumference.

Answers

Answer:

9.426 units

Step-by-step explanation:

Given data

Diameter= 3 units

Radius= 1.5 units

The circumference is given as

C=2πr

C=2*3.142*1.5

C=9.426 units

Hence the circumference is 9.426 units

What single decimal multiplier would you use to increase by 5% followed by a 6% increase?

Answers

Costing price = £13000
Increase = 11% of 13000
=> 11/100 x 13000
=> 11 x 130
=> £ 1430
Increased price = 13,000+1430
=> £ 14430

I nee help with algebra (2, -4) slope =-3 ​

Answers

Answer:

Two parallel lines have the same slope, so, the slope of the parallel line is also negative 2/3

Step-by-step explanation:

help me please!!
thank you!

Answers

Answer:

45.5cm

Step-by-step explanation:

70/20 = 3.5cm per book

20- 7 = 13

13 x 3.5 = 45.5cm

Verify the identity sin^2x = cos^2x sec^2x-cos^2x

Answers

Answer:

Step-by-step explanation:

The right side of the identity

[tex]cos^{2} x sec^{2} x - cos^{2} x\\= cos^{2} x (\frac{1}{cos^{2} x} ) - cos^{2} x\\= 1 - cos^{2} x\\= sin^{2} x[/tex]

which is the same as the left side of the identity

Which graph shows the zeros of the function f(x) = 2x2 + 4x – 6 correctly?​

Answers

Answer:

Divide through by  2  .

x2 - 2x - 3  =  0           What two numbers add to  -2  and multiply to  -3  ? →   +1   and   -3

                                  So...we can factor it like this...

(x + 1)(x - 3)  =  0        Set each factor equal to zero and solve for x.

x + 1  =  0          and          x - 3  =  0

x  =  -1               and          x  =  3

Step-by-step explanation:

Item 3 Write an equation that describes the function. (0,0) (1,4) (2,8) (3,12)

Answers

Answer:

y = 4x

Hope that helps!

Step-by-step explanation:

T=2π√h+k /gh. Find k given that 2π2= 10​

Answers

Answer:

Bne matematikçi değilim^o^

What is the slope of the line?

Answers

Answer:

1

Step-by-step explanation:

Two ordered pairs that can be seen are (0,1) and (1,2)

Using delta y/ delta x,

(2-1)/(1-0) = slope

slope = 1/1

slope = 1

Answer:

slope = 1

Step-by-step explanation:

To find the slope of the line, use the slope formula, [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex], in which [tex]m[/tex] represents the slope. The [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point, while the [tex]x_2[/tex] and [tex]y_2[/tex] represent the x and y values of another point.

Thus, locate two points on the line. We can see that the line intersects (-1,0) and (0,1), thus we can use them for the formula. (Any other two points that are also on the line will also work.) Substitute their x and y values into the appropriate places in the formula and solve:

[tex]m = \frac{(1)-(0)}{(0)-(-1)}\\m = \frac{1-0}{0+1} \\m = \frac{1}{1} \\m = 1[/tex]

Thus, the slope is 1.

Do u want th then answer this

Answers

Answer:

i cant see the image it's small

Step-by-step explanation:

Q1.) The trail mix contains 2 1/2 cups of peanuts, 2 cups of raisins, 2 cups of pretzel sticks, and 1.5 cups of
banana chips. What percent of the mix are raisins?

Answers

Answer:

25% of the mix is raisins

Find the approximate perimeter of AABC plotted
below.
A(2,7)
C(6,7)
B(-4,-3)

Answers

Answer:

29.8 units

Step-by-step explanation:

Answer:

29.8

Step-by-step explanation:

Doug makes a parallelogram-shape sign for his shop.

What is the area of this parallelogram?

Round to the nearest hundredth.

A. 5.32 ft²

B. 8.96 ft²

C. 14.28 ft²

D. 17.02 ft²


PLS HELP!!!

Answers

Answer:

C, 14.28

Step-by-step explanation:

area = base * height

= (1.9+3.2) * 2.8

=14.28

Answer:

Answer is C! brainliest this time pls

divide until the remainder is zero.
7.4 ÷ 4​

Answers

Answer:

1.85

Step-by-step explanation:

Answer:

this is not possible as it is a non terminating decimal

The Frosty Ice-Cream Shop sells sundaes for $3 and banana splits for $5. Yesterday the amount of banana splits sold was 14 less than twice the amount of sundaes and earned $541. How many sundaes did they sell?

Answers

Answer:

jijhhiojjjlkjjkkhgvbmk

Helppp im not very good at math so can you guys help me​

Answers

Answer:

Answer is D. 75 cm2

Step-by-step explanation:

The closest estimate to 70.2 is 75 cm2

Hopefully this helps

I need help with inequality question.

Answers

Answer:

the answer is c

Step-by-step explanation:

:))))))))

Is this correct? I'm not sure ;-;

Answers

Answer: 130.5

Step-by-step explanation:

108.75/15  = 7.25

18 x 7.25 = 130.5

Answer: Yup

Step-by-step explanation

Good job!

What’s the side length?

Answers

Answer:

11.18

Step-by-step explanation:

Pythagorean Theorem:

a² + b² = c²

The hypotenuse is c.

10² + b² = 15²

Square 10 = 100

Square 15 = 225

100 + b² = 225

225 - 100 = 125

Find the Square Root of 125.

11.18033989 or 11.18

Which of the following is an equation of the line whose graph is shown​ in the coordinate plane below? ​

Answers

Answer:

Y= -4/5x+4


Explanation:
Ik it’s right

HElp please i’m failing and i’m tired of this

Answers

Answer:

[tex]\sqrt{4x} =6\\\\(\sqrt{4x} x^{2} =6^{2}\\\\\frac{4x}{4} =\frac{36}{4} \\\\x=9[/tex]

Step-by-step explanation:

i hope it helps

have a nice day ^_^

Simplify.

9 + 8 + 3x

17 + 3 x
9 + 11 x
20 + x
20 x

Answers

Answer:

17+3x

that is the answer

Answer:

17 + 3x

Step-by-step explanation:

9 + 8 + 3x

=17 + 3x

because the 3 contain a valuable x that why it is add to the 17

Find the value of x and measure of the angle labeled 6x.

A. x = 5; angle measure is 72º.
B. x = 5; angle measure is 30°.
C. x = 5; angle measure is 48º.
O D. x = 5; angle measure is 42°.

Answers

B. x = 5; angle measure is 30°.

6 plates for 5.70​ please help me ASap thank you

Answers

Answer:

Well if each plate is 5.70 then the answer is 34.2

Step-by-step explanation:

Each plate was $0.95 if that's what you're trying to figure out but you didn't really specify what we were looking for

Please help me in number 34 please!!!!

Answers

Answer:

D

Step-by-step explanation:

use math wwwway , it gives ypu the answer and explenation

Simplify the expression. 2(34x ) + 5(92x ) + 81x

Answers

Answer:

608x

Step-by-step explanation:

2(34x) + 5(92x) + 81x

68x + 460x + 81x (distributive property)

608x

Help please thankssssssssssssss

Answers

9514 1404 393

Answer:

  C)  $3572

Step-by-step explanation:

The simple interest formula is ...

  I = Prt

where P is the amount invested at annual rate r for t years.

To find the value of P, we can divide by rt:

  P = I/(rt)

Filling in the given information, we have ...

  P = $500/(0.035×4) = $500/0.14 ≈ $3572

$3572 must be invested to earn $500 interest in 4 years.

2 school bags cost $ 276 . Find the cost of 88 school bags

Answers

Answer:12144

Step-by-step explanation:

Answer : FROM THE TOP, MAKE IT DROP THAT'S A WET!!! THAT'S A WET #WAP!!!

PLZ HELP ASAP I WILL GIVE BRAINLIEST
The means and mean absolute deviations of Sidney’s and Phil’s grades are shown in the table below the question.

Which expression represents the ratio of the difference of the two means to Sidney’s mean absolute deviation?

A. 82/3.28

B. 4/3.28

C. 4/0.68

D. 82/0.68

Answers

Answer:

B.

Step-by-step explanation:

Answer:

B.

StartFraction 4 over 3.28 EndFraction

Step-by-step explanation:

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