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astraxan [27]
2 years ago
10

Y=2x+40 and y=4x+20 when will these be equal

Mathematics
2 answers:
Eva8 [605]2 years ago
7 0

Answer:

x = 10

Step-by-step explanation:

2 (10) +40 = 60

4(10) +20 = 60

Lunna [17]2 years ago
3 0

Answer:

When x = 10, they will both be y = 60

(10, 60)

Step-by-step explanation:

2(10) + 40 = 60

4(10) + 20 = 60

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34x17 partial product
garri49 [273]

34 x 17 = 28 +210+40 + 300=578

5 0
2 years ago
What is the value of the expression [-8/9] divided by[ -2/3] multiplied by [-4 1/2]
SIZIF [17.4K]

Answer:

\frac{2}{3}

Step-by-step explanation:

- 8 \div 9 \div ( - 2) \div 3 \times 4 \times \frac{1}{2}  = 0.666666666 =  \frac{2}{3}

Hope this will help :))

7 0
4 years ago
The price for US postage stamps has increased over the years. Since 1975, the price has increased from $.13-$.37 in 2005 at a ra
madreJ [45]

Answer:

Linear Equation: P = 0.008T + 0.13

Price of stamp in 2015 = $0.45

Step-by-step explanation:

From 1975 to 2005 [30 years], the price increased from 0.13 to 0.37 [0.24].

This means the rate of change (slope) is 0.24/30 = 0.008

This means Price changed (increased) by $0.008 per year.

Slope = 0.008

The y-intercept (P) is at the starting point which is at T = 1975, the price was 0.13. Hence y-intercept is 0.13

The equation of a line is given as

P = mT + b

Where m is the slope and b is the y-intercept

Now, we can write the linear model equation as:

P = 0.008T + 0.13

To find the price of stamp in 2015, we see that this is 40 years later after 1975. So we plug in 40 into T in the equation found above:

P = 0.008(40) + 0.13

P = $0.45

8 0
4 years ago
(-1/7)^{-1} please help
Sidana [21]
(- \frac{1}{7}) ^{-1}= \frac{1}{ -\frac{1}{7} } =-7
3 0
3 years ago
Read 2 more answers
Half of a number,increased by 4,is 18, what is that number
Drupady [299]

Answer:28

Step-by-step explanation:

28/2=14

14+4=18

8 0
4 years ago
Read 2 more answers
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