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Fed [463]
3 years ago
5

Lena has some eggs. She uses 3/5 of the eggs to make waffles and scrambled eggs. She uses 2/3 of the eggs she took to make waffl

es. What fraction of the total number of eggs does Lena use to make waffles?
Mathematics
2 answers:
ANTONII [103]3 years ago
8 0
Okay, so first you do 3/5 + 2/3. The least common denominatior of 5 and 3 is 15.
5x3=15 so, 3x3 = 9 So, 3/5 = 9/15
3x5=15 so, 2x5 = 10 So, 2/3 = 10/15
10/15 + 9/15 = 19/15. 
19/15 = 1 4/15
Hope I helped. Sorry I'm giving you an answer pretty late, but I just saw this.
grigory [225]3 years ago
7 0
3. 9
--- • 3 = ---
5. 15

2. 10
--- • 5 = ---
3. 15
--------
19/15 or 1 4/15
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Simplify 3-3(5y+7)+(2y-6)
goblinko [34]

To simplify this, we need to do PEMDAS (parenthesis then exponents, then multiplication and division, then addition and subtraction). Here, we can't combine any like terms in the parenthesis. Since there's no exponents, that means that the next step is to do multiplication. This gives us:

3 - 15y - 21 + 2y - 6

Now we can combine like terms.

(-15y + 2y) + (3 - 21 - 6)

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7 0
3 years ago
Read 2 more answers
What is the factored form of the function f(x)=x^3+8x^2+5x−50?
Inga [223]

Answer:

the factors of  f(x)=x^3+8x^2+5x-50 are (x-2)(x+5)(x+5)

Step-by-step explanation:

We need to factorise the function f(x)=x^3+8x^2+5x-50

If a number is a factor of this function than it must be completely divisible by last co-efficient. Our last co-efficient is -50

Checking few numbers:

f(1)=(1)^{3}+8(1)^2+5(1)-50\\f(1)=1+8+5-50\\f(1)=-32\\Now \ putting \ x= 2 \\f(2)=(2)^{3}+8(2)^2+5(2)-50\\f(2)=8+8(4)+10-50\\f(2)=8+32+10-50\\f(2)=0

So, f(2)=0 which means x-2 is a factor of the given function. Now we will perform long division of x^3+8x^2+5x-50 by (x-2) to find other factors

The long division is shown in figure attached.

After long division we get: x^2+10x+25

The equation x^2+10x+25 can be further simplified as: (x+5)(x+5) or (x+5)^2

So, the factors of  f(x)=x^3+8x^2+5x-50 are (x-2)(x+5)(x+5)

3 0
3 years ago
Please help |x+10| , if x=−12
Pani-rosa [81]

Answer:

2

Step-by-step explanation:

All you do is substitute x.

Add.

|-12 + 10|

Find the absolute value of |-2|.

|-2|

2

4 0
3 years ago
Un paese contava 12000 abitanti all'inizio del 2007 durante l'anno i nati sono 1,7 % del totale degli abitanti e morti sono 2% c
grandymaker [24]

Step-by-step explanation:

12000 abitanti all'inizio del 2007

nati: 1.7% × 12000 = 204

morti: 2% × 12000 = 240

popolazione all'inizio del 2008: 12000 + 204 - 240 = 11964

6 0
2 years ago
Use the arithmetic sequence of numbers 1, 3, 5, 7, 9,.to find the following:
Rasek [7]
a)\\\\
a_{n+1}-a_n=d\\
for\ n=1\\
a_2-a_1=d\\
d=3-1=2\ - difference\ between\ two\ consecutive\ terms\\\\
b)\\
a_n=a_1+(n-1)d\\
n=101\\
a_{101}=1+(101-1)*2\\
a_{101}=1+100*2=200+1=201\\\\
c)\\
Sn=\frac{a_1+a_n}{2}*n\\
n=20\\
a_n=a_{20}=1+(20-1)*2=1+38=39\\
Sn=\frac{1+39}{2}*20=400\ \ Sum\ of\ the\ first\ 20 \ numbers.
6 0
3 years ago
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