MATHEMATICS MIDDLE SCHOOL

Explain how you could add
678 + 303 using mental math

Answers

Answer 1
Answer: Add 8+3=11
7+0=7
6+3=9
=981

Related Questions

MIDDLE SCHOOL

Which equation can be used to find 40 percent of 25? 100x4 400
40x4 = 16
40x4
160
25x4 - 100
40-4 10
100-4 - 25

Answers

Answer:

Step-by-step explanation:

40%=0.4

0.4*25=10

COLLEGE

Biologists have noticed that the chirping rate of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 113 chirps per minute at 70°F and 173 chirps per minute at 80°F. (a) Find a linear equation that models the temperature T as a function of the number of chirps per minute N.

Answers

Answer:

Step-by-step explanation:

Basically the word problem here is trying to get us to find the line using the two points (113,70) and (173,80).

It also tells us by saying that we're modeling the temperature that we're going to be using the y = mx + b formula. m and b are what we'll mainly be looking for.

Let's start by finding m, the slope. We'll be using the point slope formula:

So m = 1/6.

Now let's use that m and choose one of the points (I chose (113,70) ) to plug in everything but b in the original formula

so now that we know our b and our m, we can plug those into the original equation to get our answer!

MIDDLE SCHOOL

Find the quotient of 226.84 round your answer to the nearest tenth​

Answers

Answer: 226.8

Step-by-step explanation:  Find the number in the tenth place 8 and look one place to the right for the rounding digit 4 . Round up if this number is greater than or equal to 5 and round down if it is less than 5 .

MIDDLE SCHOOL

Find the volume of the sphere 18 m

Answers

find the volume of the sister e27

Random Questions
NEED HELP!! Which of the following experimental conditions ensured that Mendel would get accurate results in his experiments on pea plants? a.All of the above b.He physically controlled the breeding of the plants. c.He used true-breeding, or "pure breed" plants. d.He observed only traits that had two forms, such as "tall" and "short". In a population, purple flowers are dominant over blue flowers. Determine which statement below is NOT correct. a. Purple flowers must be either Pp or PP. b. Purple flowers and blue flowers can both be homozygous. C. Blue flowers must contain two recessive alleles. D. It is more of an advantage to the purple flower to be homozygous dominant. Mendel concluded that sexually reproducing organisms contribute only one copy of each factor to each of their egg or sperm cells. This was the basis for his A.Law of Independent Assortment, because the male copies of a trait must go to the sperm cells and the female copies to the eggs. B. Law of Independent Assortment, because Mendel was responsible for the pollination of each plant physically and that altered the genes in each sex cell. C. Law of Segregation, because the two forms of each trait must come together to create a blending of the two in each offspring. D. Law of Segregation, because individuals have two forms for each trait and they must separate during the formation of eggs and sperm. Jesi and Tom are doing a project on genetics, and are analyzing their traits. They are looking specifically at the trait for "dimples". Jesi has dimples, and Tom does not. Look at the image, and decide which statement below regarding dimples is true. Jesi: Dd Tom: dd A.Tom has dimples. B.Dimples are a recessive trait. C. Dimples are a dominant trait. D. Jesi is homozygous for dimples. After observing the F2 generation, what conclusion did Mendel come to? A.The recessive trait reappeared about 25% of the time. B.The recessive trait had disappeared in the F2 offspring. C. There appeared to be a blending, or intermediate, of traits in the F2 generation. D. None of the above are correct.