2 years ago

Subtract -2/3- (-2/5)

Mathematics

1 answer:

DerKrebs [107]2 years ago

7 0

Answer:

- 4/15

Step-by-step explanation:

The - and - make a + so -2/3 + 2/5

HOPE THIS HELPS

PLZ MARK BRAINLIEST

You might be interested in

Monica made 350 cookies for the bake sale. She sold them for $0.65 each. She sold 4/5 of the cookies. How much money did Monica

Nataliya [291]

The answer is 227.50
Hope this helps!
brainliest?

4 0

3 years ago

Read 2 more answers

One of your friends is testing the effect of drinking coffee on the duration of cold symptoms. The common cold lasts, on average

Goshia [24]

Answer: 0.0930

Step-by-step explanation:

As per given , we have

H0: μcoffee = 6

Ha: μcoffee < 6

She finds z = −1.68 with one-sided P-value P = 0.0465.

The P-value for two-tailed test is calculated by :

$2P(Z>|z|)$

For z= -1.68 , we have

$2P(Z>|-1.68|)=2P(Z>1.68)$

$=2(1-P(z\leq1.68))\ \ [\because\ P(Z>z)=1-P(Z\leq z)]$

$=2(1-0.9535213)\ \ \ [\text{ NORM.S.DIST(z, TRUE}]\\\\=2( 0.0464787)=0.0929573\approx0.0930$

Hence, the correct two-sided P-value for z = −1.68 is 0.0930 .

3 0

3 years ago

Write an equation of the line that has a slope of 3 and contains the point (2,5) in point-slope for

enot [183]

The equation would be y=3x-1

Point Slope Formula:

y - y1 = m(x - x1)

y - 5 = 3(x-2)
y - 5 = 3x - 6
+ 5 + 5
--------------------
y = 3x - 1

8 0

3 years ago

Read 2 more answers

The probability of getting a head is 0.3 find the probability of getting a tail

ratelena [41]

Answer: 0.7

Step-by-step explanation:

p(tail) + p(head) = 1

p(tail) = 1 - p(head)

p(tail) = 1 -0.3

p(tail) = 0.7

mark the brainliest plzz

6 0

3 years ago

A suit costs $95. Barry has a discount coupon for 10% off and the city has a 4.5% sales tax. What is the final cost of the suit?

seropon [69]

So first you need to do the discount

(95)(0.9) = 85.5

then add the 4.5% sales tax:

(85.5)(1.045) = $89.35

7 0

3 years ago