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3 years ago

Linda has 60 marbles. of which 30% are blue. How many blue marbles does linda have?

Mathematics

2 answers:

Elena-2011 [213]3 years ago

6 0

30 because half of 30 is 60and 60 is like 100 cuz it is the whole so half of 60 is 30

Sladkaya [172]3 years ago

5 0

The answer is 18, because 10 percent of 60 is 6, and you have to multiply 6 by three because you are trying to find 30%

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Which step is the answer to the question and you cant answer step 5

lukranit [14]

Answer:

Step-by-step explanation:

Step 2, she factored the trinomial incorrectly. She did, "what two numbers multiply to equal 6 but add to equal 5?" She should have asked multiply to equal -6 and add to equal 5. The correct factorization would be:

(x+6)(x-1) = 0

x = -6 and 1

7 0

2 years ago

Maria invests $6,154 in a savings account with a fixed annual interest rate of 8% compounded continuously. What will the account

VladimirAG [237]

Answer:

$13,695.98

Step-by-step explanation:

Continuously compounded interest formula:

$A = Pe^{rt}$

where

A = future value

P = principal (present value of amount invested)

e = mathematical constant, the base of natural logarithms

r = interest rate

t = time in years

We have: P = 6154; r = 8% = 0.08; t = 10

$A = 6154e^{0.08 \times 10}$

$A = 6154e^{0.8}$

$A = 6154 \times 2.2255$

$A = 13695.98$

Answer: $13,695.98

3 0

3 years ago

Simon draws a rectangle with two sides that are 2 inches long and two sides that are 3 inches long.Chaz draws a figure with the

7nadin3 [17]

The other shape might be a trapezoid.

3 0

3 years ago

Please Help! If (5x-2)^2=ax^2-bx+c, what is the value of a+c^2?

Sladkaya [172]

Answer:

The solved problem is in the photo. Hope it helps.

6 0

3 years ago

Which equation has the solutions X=1 +-SQRT 5?

Vesna [10]

Answer:

D is correct. $x^2-2x-4=0$

Step-by-step explanation:

We are given the root of the equation

$x=1+\pm \sqrt{5}$

If we are given solution of the equation then find equation using formula.

If a and b are the solution of equation then equation would be (x-a)(x-b)=0

Here, $a=1+\sqrt{5} , b=1-\sqrt{5}$

Equation form would be $(x-1-\sqrt{5})(x-1+\sqrt{5})=0$

Now we simplify the above equation to get correct option.

$x^2-x+x\sqrt{5}-x+1-\sqrt{5}-x\sqrt{5}+\sqrt{5}-5=0$

$x^2-2x-4=0$

So, D is correct. $x^2-2x-4=0$

8 0

3 years ago

Read 2 more answers