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Degger [83]
3 years ago
9

What is the answer of number 12 and 13?

Mathematics
1 answer:
Ksju [112]3 years ago
3 0

Answer:

Step-by-step explanation:

the answer is 13 and 2.2

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Please help me out with this question
sleet_krkn [62]

Answer:

0.31%

Step-by-step explanation:

Just look at the graph my man

5 0
3 years ago
Plz help me with this math and also explain
jasenka [17]

Step-by-step explanation:

<h2>[1]</h2>

  • SI = $250
  • Rate (R) = 12\sf \dfrac{1}{2} %
  • Time (t) = 4 years

\longrightarrow \tt { SI = \dfrac{PRT}{100} } \\

\longrightarrow \tt { 250 = \dfrac{P \times 12\cfrac{1}{2} \times 4}{100} } \\

\longrightarrow \tt { 250 = \dfrac{P \times \cfrac{25}{2} \times 4}{100} } \\

\longrightarrow \tt { 250 = \dfrac{P \times 25 \times 2}{100} } \\

\longrightarrow \tt { 250 = \dfrac{P \times 50}{100} } \\

\longrightarrow \tt { 250 \times 100 = P \times 50} \\

\longrightarrow \tt { 25000 = P \times 50} \\

\longrightarrow \tt { \dfrac{25000}{50} = P } \\

\longrightarrow \underline{\boxed{ \green{ \tt { \$ \; 500 = P }}}} \\

Therefore principal is $500.

<h2>__________________</h2>

<h2>[2]</h2>

  • 2/7 of the balls are red.
  • 3/5 of the balls are blue.
  • Rest are yellow.
  • Number of yellow balls = 36

Let the total number of balls be x.

→ Red balls + Blue balls + Yellow balls = Total number of balls

\longrightarrow \tt{ \dfrac{2}{7}x + \dfrac{3}{5}x + 36 = x} \\

\longrightarrow \tt{ \dfrac{10x + 21x + 1260}{35} = x} \\

\longrightarrow \tt{ \dfrac{31x + 1260}{35} = x} \\

\longrightarrow \tt{ 31x + 1260= 35x} \\

\longrightarrow \tt{ 1260= 35x-31x} \\

\longrightarrow \tt{ 1260= 4x} \\

\longrightarrow \tt{ \dfrac{1260 }{4}= x} \\

\longrightarrow \underline{\boxed{  \tt { 315 = x }}} \\

Total number of balls is 315.

A/Q,

3/5 of the balls are blue.

\longrightarrow \tt{ Balls_{(Blue)} =\dfrac{3 }{5}x} \\

\longrightarrow \tt{ Balls_{(Blue)} =\dfrac{3 }{5}(315)} \\

\longrightarrow \tt{ Balls_{(Blue)} = 3(63)} \\

\longrightarrow \underline{\boxed{ \green {\tt { Balls_{(Blue)} = 189 }}}} \\

8 0
3 years ago
2x+4≥24 how do I solve this problem
Katen [24]
First subtract 4 then divide 2 so u can isolate x
3 0
4 years ago
A 5000 principal is invested in two accounts, one earning 1% interest and another earning 6% interest. If the total interest for
SOVA2 [1]

Answer:

2600 into the account earning 1% interest

2400 into the account earning 6% interest

Step-by-step explanation:

let x= account earning 1% interest

y= account earning 6% interest

we can write

x+y=5000   (equation 1)

.01x+.06y=170   (equation 2)

mulitply equation 1 by .01

.01x+.01y=50

subtract this from equation 2

(.01x+.06y)-(.01x+.01y)= 170-50

.05y= 120

y= 2400

Plug in y= 2400 into equation 1

x+2400=5000

x=2600

4 0
3 years ago
A triangle has angle measures 23° and 35°. What is the measure of the third angle ?
frozen [14]
23 + 35 + A=180
58 + a =180
-58         -58
-------------------
      A   = 122 degrees
7 0
3 years ago
Read 2 more answers
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