Can someone help rn I need this rn thanks in advance

Answer:

[tex]50\:\text{kg water}[/tex]

Step-by-step explanation:

This question implies the constant rate or proportion of water to mass. Therefore, we can set up the following equation:

[tex]\frac{60}{90}=\frac{x}{75},\\\\x=\frac{75\cdot 60}{90}=\boxed{50\:\text{kg water}}[/tex]

Answer:

50 kg

Step-by-step explanation:

90 kg = 60kg

/90         /90

1 kg = 0.667kg

1 kg  = 0.667kg

* 75kg    * 75kg

75kg = 50 kg

Answer:

266.39mm²

Step-by-step explanation:

The formula for surface area of a square based pyramid =

S.A = a² + 2a √a²/4 + h²

Where

a = base length = 8mm

s = Height of the pyramid = 12mm

Hence,

S.A = 8² + 2 × 8 × √8²/4 + 12²

S.A = 64 + 16 ×√64/4 + 144

S.A = 80 × √16 + 144

S.A = 80 × √160

S.A = 266.39 mm²

Therefore, the surface area of a square pyramid is 266.39 mm²

Answer:

18

Step-by-step explanation:

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brainliest

18

Answer:

144 ounces

Step-by-step explanation:

Answer:

[tex]x+2y = 5\\x = 5 -2y\\\\Substitute \ x \ in \ second \ equation \\\\3(5-2y) +5y = 14\\15 -6y +5y = 14\\-y = 14 -15\\-y = -1\\y = 1\\Substitute \ y = 1 \ in \ x = 5 -2y:\\ x = 5 -(2\cdot 1) = 5-2=3\\[/tex]

Option (3, 1)

Answer:

The solution is (3, 1)

Step-by-step explanation:

Use the method "elimination by addition and subtraction."  Multiply all terms of the first equation by -3, obtaining

-3x - 6y = -15

and combine this result with the second equation:

-3x - 6y = -15

3x  + 5y = 14

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

          -y = -1, or y = 1.

Substituting this result, y = 1, into the first equation yields

x + 2(1) = 5, or x + 2 = 5, or x = 3.

The solution is (3, 1)

Answer:

TU = 2 (HD)

Hence, TU = 80

Step-by-step explanation:

line formed by joining 2 mid points of a traingle = 0.5 times of length of 3rd side.

Answer:

I think it is 92. UV and TV are the two sides of the triangle, and yoy are left with the longest side (hypotenuse). Therefore you can use the pythagorean theorem to find your answer a²+b²=c²

So 40+52=92

Answer:

7min:15min

Step-by-step explanation:

28min:1 hour

28min:60 minutes

14min:30min

7min:15min

Answer:

25%

Step-by-step explanation:

Add all the cold orders

(8+12+5)

Then, you know there are 100 orders

25/100=25%

Answer:

9/5

Step-by-step explanation:

If x is inversely proportional to y, then;

x = k/y

Given the coordinate (6,1)

6 = k/1

k = 6*1

k = 6

To get y when x = 10/3

10/3 = 6/y

y = 6/(10/3)

y = 6 * 3/10

y = 18/10

y = 9/5

Hence the value of  y is 9/5

9514 1404 393

Answer:

  no iterations shown; the root is approximately -1.12911

Step-by-step explanation:

If your method of successive approximation is the Bisection Method, and if your initial interval is [-2, -1], then successive values of x used for reducing the interval are ...

  -1.5, -1.25, -1.125, -1.1875, -1.15625

__

If your method of successive approximation is Newton's method, and if your initial guess is -1.5, then successive values of x will be ...

  -1.1905079, -1.1309053, -1.1291151, -1.1291135

Another iteration confirms this last value is accurate to 8 significant figures.

Answer:

-5/4

-9/8

-19/16

Step-by-step explanation:

This is the answer given

Answer:

D

Step-by-step explanation:

I've attached one of those tables below

I'm going to solve this using the FV annuity formula

[tex]R(\frac{(1+i)^n-1}{i})[/tex]

where i is the effective rate of interest

r is the payment

n is the number of periods

to find the effective rate of interest we need to divide .08/2 (because the interest is compounding once every six months)

and the number of periods is 4*2 (because there are two periods a year(

[tex]1500(\frac{(1+.04)^8-1}{.04})=13821.33[/tex] which is equal to D

To use the table go to the effective rate of interest (4%) and then number of periods (8)

The number is 9.2142

mulitply that by the payment (1500) and get 13821.3 (D)

*the reason that the answers are slightly different is because the annuity table rounded whereas in the formula it was more exact*

9514 1404 393

Answer:

  D.  $13,821.30

Step-by-step explanation:

The table is given in terms of interest rate per period and number of periods. The table assumes that money is invested at the same interval that interest compounding occurs.

Since you're investing $1500 every 6 months for 4 years, the 8% annual interest rate becomes 8%·(6/12) = 4% interest each 6-month period. In 4 years, there are 8 periods of 6 months. So, you look for the multiplier shown in the table that is at the intersection of 4% interest and 8 periods.

That multiplier is 9.2142, so the future value is ...

  FV = amount invested per period × multiplier from table

  = $1500 × 9.2142 = $13,821.30

__

The above is how you use the table.

You can also choose the correct answer based only on your number sense, without bothering with the table.

You are paying into the annuity 8 payments of $1500 each. That is a total input of 8 × $1500 = $12,000. You will be earning interest on that money, so the future value of the annuity is more than $12,000. Only one answer choice fits that description:

  D.  $13,821.30

Answer:

21

Step-by-step explanation:

Answer:

y = ±[tex]\sqrt{x-3}[/tex]

Step-by-step explanation:

step 1: substitute 'x' for 'y'

x = y² + 3

y² = x - 3

last step: solve for 'y'

y = ±[tex]\sqrt{x-3}[/tex]

Answer:

10 units

Step-by-step explanation:

Area of the triangle (A') = 1/2bh

A' = 1/2bh............ Equation 1

Where b = base of the triangle, h = height of the triangle

From the diagram,

Given: b = 12.5 unit, h = 4 unit

Substitute into equation 1

A' = 1/2(12.5)(4)

A' = 25 squared unit.

Also,

Area of the rectangle (A) = Lenght(L)×width(w)

A = Lw............ Equation 2

From the question,

If the area of the rectangle is 40% larger than the area of the triangle

Therefore,

A = 1.4A'

A = 1.4(25)

A = 35 squared unit.

Also given: w = 3[tex]\frac{1}{2}[/tex] = 7/2

Substitute into equation 2

35 = L×7/2

7L = 35×2

7L = 70

L = 70/7

L = 10 units

Answer:

Rachel is correct

Step-by-step explanation:

We can calculate angle T by using cosine rule where;

t² = r² + m² - 2rm cos T

From the diagram, we see that;

t = 30

r = 18

m = 24

Thus;

30² = 18² + 24² - 2(18 × 24)cosT

900 = 324 + 576 - 864cosT

864cosT = 900 - 324 - 576

864cosT = 0

cosT = 0/864

T = cos^(-1) 0

T = 90°

Answer:

38.9

Step-by-step explanation:

Sin x = opposite/hypotnuse

Sin-1 = 32/51

=38.86

=38.9

Answer:

The answer is: u-3>-6

This is because 10-3=7 and 7>-6

Answer:

x

Step-by-step explanation:

Answer: 1/6

Step-by-step explanation:

Since Sam has to memorize 1/2 of his lines and he memorizes 1/3 of his lines today, the fractions of his lines that he has left to memorize will be gotten by subtracting 1/3 from 1/2. This will be:

= 1/2 - 1/3

= 3/6 - 2/6

= 1/6

Therefore, he has 1/6 of his lines left to memorize.

Answer:

1/6

Step-by-step explanation:

The fractions of his lines will he have left to memorize is calculated as:

Number of lines he has to memorize - Number of line he memorized today

Number of lines he has to memorize = 1/2

Number of line he memorized today = 1/3

Hence,

= 1/2 - 1/3

Lowest Common Denominator = 6

= 3 - 2/6

= 1/6

Answer:

x=-3

Step-by-step explanation:

Hi there!

1) Determine the slope

Parallel lines always have the same slope. However, the given line x=8 is a vertical line organized in the form x=d, where d is the x-intercept. Therefore, the slope is undefined, and our line will also have an undefined slope.

Now, because this line will also be a vertical line, it will also be organized like:

x=d

2) Determine the x-intercept (d)

Note that all the points a vertical line passes through will have the same x-coordinate. We're given that this line passes through the point (-3,-2), so therefore, the x-intercept will be (-3,0).

Plug this into x=d:

x=-3

I hope this helps!

Answer:

The answer is AC=45

Step-by-step explanation:

it's an Isosceles triangle

Answer:

ans = <ebc= 115°

hope this will help

.

.

Answer: 63

Maybe?

If it’s wrong sorry :)

Answer:

Step-by-step explanation:

Cost of item = x

Percentage discount = 20%

Discount on item :

20% * x

20/100 * x

0.2x

Cost of item after discount :

Initial cost - discount

x - 0.2x

0.8x

Answer:

I don't know but you might end up with a C

Step-by-step explanation:

OR A D

Answer:

wdym

Step-by-step explanation:

i dont get it

Step-by-step explanation:

1 reflection 2.rotation 3 reflection 4 rotation

Answer: 1251

Step-by-step explanation:

Given

Leia is setting up 417 toy cars

Each car needs 3 batteries to drive

So, 417 cars need

[tex]\Rightarrow 417\times 3\\\Rightarrow 1251\ \text{batteries}[/tex]

Thus, 1251 batteries is needed.

Answer:

200.96

Step-by-step explanation:

3.14*8*8=200.96