Evaluate. a-b if a = 1/4, b = 2/5x, please show work

Answer:

2.5 as a decimal as a fraction 5/2 or 2 1/2

Step-by-step explanation:

Answer:

$8.29

Step-by-step explanation:

Answer:

The answer is $8.29

Step-by-step explanation:

The answer is $8.29 because if the gloves cost $41.45 for 5 pairs of gloves, you would divide $41.45 by 5 to get the answer $8.29.

hope this helps :))))

Answer:

A. 4

Step-by-step explanation:

90% of 40 is = 36

40 - 36 = 4

Since he got 36 right out of 40, he got 4 wrong.

Answer:

1 pint

Step-by-step explanation:

Answer:

Factoring out the GCF is the first step in many factoring problems. Step 1: Determine the greatest common factor of the given terms. The greatest common factor or GCF is the largest factor that all terms have in common. Step 2: Factor out (or divide out) the greatest common factor from each term.

Answer:

 CAN YOU MARK ME BRAINLIEST ??

The answer is 1/8 candy left!!

Step-by-step explanation:

3/4=6/8 because x2.

6/8-5/8= 1/8

Answer:

1/8 of the jelly beans

Step-by-step explanation:

You need to create a common denominator between the two fractions. Since both 4 and 8 go into 8, that will be the common denominator. To get 4 to 8, you have to multiply by 2, so to even it out you multiply the numerator by 2(3x2) which equals 6. Now the first fraction is 6/8 and the second is still 5/8. If he ate 5/8 of 6/8 jelly beans, you need to subtract. 6/8 minus 5/8 is 1/8

Answer:

450?

Step-by-step explanation:

Answer:

[tex]5\dfrac{1}{2}\ \text{kg}[/tex]

Step-by-step explanation:

Plant food used on strawberry plants is

[tex]1\dfrac{2}{3}\ \text{kg}=\dfrac{5}{3}\ \text{kg}[/tex]

Plant food used on tomato plants is

[tex]\dfrac{1}{4}\ \text{kg}[/tex]

Feeding the strawberry plants two times means

[tex]\dfrac{5}{3}+2\times\dfrac{5}{3}=\dfrac{5}{3}+\dfrac{10}{3}\\ =\dfrac{15}{3}=5\ \text{kg}[/tex]

Feeding the tomato plants one more time means

[tex]\dfrac{1}{4}+\dfrac{1}{4}=\dfrac{2}{4}\\ =\dfrac{1}{2}\ \text{kg}[/tex]

The plant food he will need is [tex]5+\dfrac{1}{2}=5\dfrac{1}{2}\ \text{kg}[/tex]

The solution of the equation by the quadratic formula are, {±2/3, ±i}

An algebraic equation with the second degree of the variable is called an Quadratic equation.

We have to given that;

The equation is,

⇒ 9x⁴ + 5x² - 4 = 0

Now, Put x² = y in above equation, we get;

⇒ 9y² + 5y - 4 = 0

Bu using quadratic formula as;

⇒ y = - 5 ± √5² - 4×9×- 4 / 2×9

⇒ y = - 5 ± √25 + 144 / 18

⇒ y = - 5 ± √169 / 18

⇒ y = - 5 ± 13 / 18

This gives two solution,

⇒ y = - 5 + 13 / 18

⇒ y = 8/18

⇒ y = 4/9

⇒ x² = 4/9

⇒ x = ±2/3

And, y = - 5 - 13 / 18

⇒ y = - 18 / 18

⇒ y = - 1

⇒ x² = - 1

⇒ x = ±i

Thus, The solution of the equation are {±2/3, ±i}.

Learn more about the quadratic equation visit:

brainly.com/question/1214333

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Answer:

26.5 ft

Step-by-step explanation:

Let the point of the tree sticking out water be represented as S.

Thus, we have ∆LMS.

How far Lisa is from the tree in the water = [tex] \overline{LS} [/tex]

Using Sine Rule, find [tex] \overline{LS} [/tex]

[tex] \frac{\overline{LS}}{sin(M)} = \frac{\overline{MS}}{sin(L)} [/tex]

[tex] \overline{LS} = x [/tex]

[tex] \overline{MS} = 22 ft [/tex]

[tex] \angle M = 103 [/tex]

[tex] \angle L = 54 [/tex]

Plug in the values into the equation

Thus:

[tex] \frac{x}{sin(103)} = \frac{22}{sin(54)} [/tex]

Multiply both sides by sin(103)

[tex] \frac{x}{sin(103)}*sin(103) = \frac{22}{sin(54)}*sin(103) [/tex]

[tex] x = \frac{22*sin(103)}{sin(54)} [/tex]

[tex] x = 26.5 ft [/tex] (nearest tenth)

✅Lisa is 26.5 ft far away from the tree in the water.

Answer:

19 (The true answer is 19 xD)

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

a scale factor is basically comparing the lengths/width of a figure. the top of the figures are 1 (smaller figure) and 3 (bigger figure). then compare that and you get 1/3.

Answer:

3

Step-by-step explanation:

Side lengths of ABC: 4, 1

Side lengths of A'B'C': 12,3

4×3 = 12

1×3 = 3

3 is the scale factor of triangle ABC to triangle A'B'C'

Answer:A triangle has a perimeter of 165 cm. The first side is 65 cm less than twice the second side. The third side is 10 cm less than the second side. Write and solve an equation to find the length of each side of the triangle.

The sides can be found by taking the square root of the area. , where = side. . So the length of a side is 6.3 cm.

Step-by-step explanation:

Answer:

i think  students 3

Step-by-step explanation:

Answer:

it cannot be simplified

Step-by-step explanation:

Answer: it is already simplified

61/82

Answer:

70% are medium-sized jerseys.

Step-by-step explanation:

The complete question is:

The football team has a total of 20 jerseys. There are ​14 medium-sized jerseys. What percent of the jerseys are​ medium-sized jerseys? nothing​% are​ medium-sized jerseys.

Solution:

The information provided is:

Compute the percentage of medium-sized jerseys as follows:

[tex]\text{Medium-sized Jerseys}\%=\frac{n(\text{Medium-sized Jerseys})}{N}\times 100[/tex]

                                     [tex]=\frac{14}{20}\times 100\\\\=70\%[/tex]

Thus, there are 70% medium-sized jerseys.

Answer:

8,2 and 0,4 are the points you need on the graph

Step-by-step explanation:

Answer:

I assume that there are parentheses missing from the question and that it should be

Prove that  1 + sin 2A + cos 2A                                                                                                                                                                            ----------------------------------------------  = cot A

1+sin2A−cos 2A

Use sin 2 A= 2 sin A cos A and

cos 2 A = 1−2 sin 2 A and cos 2 A = 2 cos A−1

Answer:

Step-by-step explanation:

Let total money be m

Then, the money spent on 2 video games is 1/5m

Each game costs:

So each video game costs 1/10 of birthday money

Answer:

1/10

Step-by-step explanation:

spent 1 on 2 video games

          5

= 1/5

    2 games

= 1/10 of money spent on each game

As long as x-value doesn't give 2 y-values.

Also it's a function.

Answer:

It's because someone added LETTERS to math.

Step-by-step explanation:

I know this because I'm suffering from this.

A brainliest for this doggo is a bone! This doggo would appreciate a bone!

M: Mental

A: Abuse

T: To

H: Humans

Answer:

Advancement in human mathematics

Step-by-step explanation:

Answer:

8 hours

Step-by-step explanation:

72 miles per hour

576/72= 8

Answer: 20.5

Step-by-step explanation:

subtract 0.05 from each answer until you get 20 terms then add those terms up

Answer:

Volume of square pyramid=120,000 m³

Step-by-step explanation:

We are given: Base of square pyramid = 60 m

Height of square pyramid = 100 m

We need to find Volume of square pyramid.

The formula used is: [tex]Volume \ of \ square \ pyramid=\frac{1}{3}a^2h[/tex]

Where a is base and h is height of square pyramid

Putting values in formula and finding volume of square pyramid

[tex]Volume \ of \ square \ pyramid=\frac{1}{3}a^2h\\Volume \ of \ square \ pyramid=\frac{1}{3}(60)^2(100)\\Volume \ of \ square \ pyramid=\frac{1}{3}(3600)(100)\\Volume \ of \ square \ pyramid=120,000\ m ^3[/tex]

So, Volume of square pyramid=120,000 m³

Answer: 2:1

Step-by-step explanation:

The ratio of A to B is given by :  [tex]\dfrac{A}{B}[/tex] or A : B  .

Given : sundaes with nuts  = 4

sundaes without nuts = 8

The ratio of the number of sundaes with nuts to the number of sundaes without nuts = [tex]\dfrac{8}{4}=\dfrac{2}{1}\ \ \ [\text{Divide numerator and denominator by 4 }][/tex]

= 2:1

hence, the required ratio = 2:1 .

Answer:

x3(2x5)-4(2x5

Step-by-step explanation:

Hope that helps

Answer:

B) x3(2x + 5) – 4(2x + 5)
Included the whole page!!

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EDGE2022; Good Luck :3!!!